Rig Veda 8.2.37

Sanskrit text [Accents, Plain, Transliterated]:

यज॑ध्वैनं प्रियमेधा॒ इन्द्रं॑ स॒त्राचा॒ मन॑सा । यो भूत्सोमै॑: स॒त्यम॑द्वा ॥
यजध्वैनं प्रियमेधा इन्द्रं सत्राचा मनसा । यो भूत्सोमैः सत्यमद्वा ॥
yajadhvainam priyamedhā indraṃ satrācā manasā | yo bhūt somaiḥ satyamadvā ||

English translation:

“Worship, Priyamedha, with mind intent upon him, that Indra, who is truthful when exhilarated by theSoma potations.”

Commentary by Sāyaṇa: Ṛgveda-bhāṣya

Truthful: somaiḥ satyamadvā: truth, as applied to a vedic deity, means one who keeps faithwith his worshippers, who grants his prayers; so Indra, in his cups, is especially bountiful to those who praisehim

Details:

Ṛṣi (sage/seer): medhātithiḥ kāṇvaḥ priyamedhaścāṅgirasaḥ [medhātithi kāṇva priyamedhaścāṅgirasa];
Devatā (deity/subject-matter): indra:;
Chandas (meter): ārṣīgāyatrī ;
Svara (tone/note): Swar;

Padapatha [Accents, Plain, Transliterated]:

यज॑ध्व । ए॒न॒म् । प्रि॒य॒ऽमे॒धाः॒ । इन्द्र॑म् । स॒त्राचा॑ । मन॑सा । यः । भूत् । सोमैः॑ । स॒त्यऽम॑द्वा ॥
यजध्व । एनम् । प्रियमेधाः । इन्द्रम् । सत्राचा । मनसा । यः । भूत् । सोमैः । सत्यमद्वा ॥
yajadhva | enam | priya-medhāḥ | indram | satrācā | manasā | yaḥ | bhūt | somaiḥ | satya-madvā

Multi-layer Annotation of the Ṛgveda

[Rigveda 8.2.37 English analysis of grammar]