Dvadashaha, Dvādaśāha, Dvadashan-aha, Dvadashahan, Dvadashan-ahan, Dvādaśāhan: 8 definitions
Introduction:
Dvadashaha means something in Hinduism, Sanskrit. If you want to know the exact meaning, history, etymology or English translation of this term then check out the descriptions on this page. Add your comment or reference to a book if you want to contribute to this summary article.
The Sanskrit terms Dvādaśāha and Dvādaśāhan can be transliterated into English as Dvadasaha or Dvadashaha or Dvadasahan or Dvadashahan, using the IAST transliteration scheme (?).
In Hinduism
Dharmashastra (religious law)
Dvādaśāha (द्वादशाह) refers to “sacrifices lasting twelve days”, according to the Āpastamba-yajña-paribhāṣā-sūtras.—“The Dvādaśāha is the Prakṛti of the Ahargaṇas”. Commentary: The Dvādaśāha lasts twelve days and is a Soma sacrifice. It is either an Ahīna or a Sattra. An Ahargaṇa is a series of daily and nightly sacrifices. Those which last from two nights to eleven nights are called Ahīna. Those which last from thirteen to one hundred nights or more are called Sattras.

Dharmashastra (धर्मशास्त्र, dharmaśāstra) contains the instructions (shastra) regarding religious conduct of livelihood (dharma), ceremonies, jurisprudence (study of law) and more. It is categorized as smriti, an important and authoritative selection of books dealing with the Hindu lifestyle.
Yoga (school of philosophy)
Dvādaśāha (द्वादशाह) refers to the “time period of twelve days”, according to the Amanaska Yoga treatise dealing with meditation, absorption, yogic powers and liberation.—Accordingly, as Īśvara says to Vāmadeva: “[...] [Now], I shall define the nature of that highest, mind-free absorption which arises for those devoted to constant practice. [...] By means of an absorption for a period of twelve days (dvādaśāhan), the state of moving across the earth is achieved. Within half the time [it takes to] blink an eyelid, [the Yogin can] travel [anywhere] around the world. [...]”.

Yoga is originally considered a branch of Hindu philosophy (astika), but both ancient and modern Yoga combine the physical, mental and spiritual. Yoga teaches various physical techniques also known as āsanas (postures), used for various purposes (eg., meditation, contemplation, relaxation).
Purana and Itihasa (epic history)
Dvādaśāha (द्वादशाह) refers to the “twelfth day” (after birth or death in one’s family), according to the Śivapurāṇa 2.5.28 (“The penance and marriage of Śaṅkhacūḍa”).—Accordingly, [As Tulasī said to Śaṅkhacūḍa]: “[...] A brahmin is purified from impurity arising from births or deaths in the family, after the tenth day. A Kṣatriya in twelve days (dvādaśāha), a Vaiśya in fifteen days and a Śūdra in a month. This is what the Vedas enjoin. But a henpecked man can never be purified till death. [...]”.

The Purana (पुराण, purāṇas) refers to Sanskrit literature preserving ancient India’s vast cultural history, including historical legends, religious ceremonies, various arts and sciences. The eighteen mahapuranas total over 400,000 shlokas (metrical couplets) and date to at least several centuries BCE.
Languages of India and abroad
Sanskrit dictionary
Dvādaśāha (द्वादशाह).—1. [masculine] a period of 12 days.
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Dvādaśāha (द्वादशाह).—2. [adjective] lasting 12 days.
1) Dvādaśāha (द्वादशाह):—[from dvā-daśa > dvā] mfn. lasting 12 days
2) [v.s. ...] a period or ceremony of 12 days, [Atharva-veda; Śatapatha-brāhmaṇa; Manu-smṛti; Mahābhārata]
Dvādaśāha (द्वादशाह):—1. (dvādaśan + aha) m. ein Zeitraum von zwölf Tagen [The Śatapathabrāhmaṇa 11, 5, 4, 9. 14, 9, 3, 1.] [Manu’s Gesetzbuch 5, 83. 11, 167. 215.] [Rāmāyaṇa 1, 50, 15 (Gorresio 51, 15).]
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Dvādaśāha (द्वादशाह):—2. (wie eben) adj. zwölf Tage dauernd; m. eine best. Zwölftagefeier: dvādaśāhaḥ prākṛto yajña uktaḥ [Mahābhārata 3, 10669.] [Atharvavedasaṃhitā 9, 6, 43. 11, 7, 12.] [Aitareyabrāhmaṇa 4, 23. 30.] [The Śatapathabrāhmaṇa 4, 5, 9, 1. 12, 3, 3, 7.] [Kātyāyana’s Śrautasūtrāṇi 12, 1, 1.] [Śāṅkhāyana’s Śrautasūtrāṇi 10, 1, 1.] [Mahābhārata 13, 4934. 4938.] — Vgl. bharata, vyūḍha, saṃkrama .
Dvādaśāha (द्वादशाह):—1. m. ein Zeitraum von zwölf Tagen.
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Dvādaśāha (द्वादशाह):—2. —
1) Adj. zwölftägig. —
2) m. eine best. zwölftägige Feier.
Sanskrit, also spelled संस्कृतम् (saṃskṛtam), is an ancient language of India commonly seen as the grandmother of the Indo-European language family (even English!). Closely allied with Prakrit and Pali, Sanskrit is more exhaustive in both grammar and terms and has the most extensive collection of literature in the world, greatly surpassing its sister-languages Greek and Latin.
Nepali dictionary
Dvādaśāha (द्वादशाह):—n. 1. twelve days; 2. a sacrifice done for twelve days; 3. obeisance done at the twelfth from one's death;
Nepali is the primary language of the Nepalese people counting almost 20 million native speakers. The country of Nepal is situated in the Himalaya mountain range to the north of India.
See also (Relevant definitions)
Partial matches (+0): Dvadasha, A han bu, Aha.
Starts with (+0): Dvadashahahautra, Dvadashahahautraprayoga, Dvadashahakarmavidhi, Dvadashahamahavrataprayoga, Dvadashahamaitravarunaprayoga, Dvadashahandabila, Dvadashahantasamaprayoga, Dvadashahapaddhati, Dvadashahaprashna, Dvadashahaprayoga, Dvadashahaprayogapaddhati, Dvadashahaprayogavritti, Dvadashahasutra, Dvadashahasya shastraklipti.
Full-text (+18): Bharatadvadashaha, Samkramadvadashaha, Dvadashahaprashna, Dvadashahahautra, Dvadashahaprayoga, Advadashaha, Dvadashahasutra, Dvadashahapaddhati, Dvadashahika, Dvadashadina, Dvadashavasara, Dvadashahaprayogapaddhati, Dvadashahaprayogavritti, Dvadashahamaitravarunaprayoga, Dvadashahamahavrataprayoga, Chandoma, Dasharatra, Kananna, Dvadashahandabila, Vyudhahinadvadashahaparishishta.
Relevant text
Search found 24 books and stories containing Dvadashaha, Dvādaśa-aha, Dvadasa-aha, Dvadasa-ahan, Dvādaśa-ahan, Dvādaśāha, Dvadasaha, Dvādaśāhan, Dvadasahan, Dvādaśan-aha, Dvadasan-aha, Dvadasan-ahan, Dvādaśan-ahan, Dvadasha-aha, Dvadasha-ahan, Dvadashahan, Dvadashan-aha, Dvadashan-ahan; (plurals include: Dvadashahas, ahas, ahans, Dvādaśāhas, Dvadasahas, Dvādaśāhans, Dvadasahans, Dvadashahans). You can also click to the full overview containing English textual excerpts. Below are direct links for the most relevant articles:
Panchavimsha Brahmana (English translation) (by W. Caland)
Chapter 10 - The twelve-day rite (and its stomas)
Chapter 13 - Prishthya (six-day period of the twelve-day rite) (continued)
Baudhayana Dharmasutra (by Georg Bühler)
The Sacrifices of Rajasuya, Vajapeya and Ashvamedha (study) (by Aparna Dhar)
Summary of the Dvādaśāha sacrifice < [Chapter 2 - Vedic Sacrifices described in the Śatapatha Brāhmaṇa]
Aitareya Brahmana (a comprehensive analysis) (by Sanghamitra Mukherjee)
The Dvādaśāha Sacrifice < [Chapter 1 - Rituals]
Part 3.3 - Prajāpati and the Metres < [Chapter 3 - Myths and Legends]
Agniṣṭoma—at a glance (as stated by Haug) < [Chapter 1 - Rituals]
A Descriptive Catalogue of the Sanskrit Manuscripts, Madras (by M. Seshagiri Sastri)
Manusmriti with the Commentary of Medhatithi (by Ganganatha Jha)
Verse 11.167 < [Section XVIII - Expiation for Theft (steya)]
Verse 8.210 < [Section XXXIV - Joint Concerns]