Rig Veda 1.188.1

Sanskrit text [Accents, Plain, Transliterated]:

समि॑द्धो अ॒द्य रा॑जसि दे॒वो दे॒वैः स॑हस्रजित् । दू॒तो ह॒व्या क॒विर्व॑ह ॥
समिद्धो अद्य राजसि देवो देवैः सहस्रजित् । दूतो हव्या कविर्वह ॥
samiddho adya rājasi devo devaiḥ sahasrajit | dūto havyā kavir vaha ||

English translation:

“You shine today, divine conqueror of thousands, kindled by the priests; do you, who are the sapient messenger (of the gods), convey (to them) our oblation.”

Commentary by Sāyaṇa: Ṛgveda-bhāṣya

The Āpris are also prayājas; kim. devatā = what sort of divinities are these; prayāja, that which is an especial object of worship; such as divinities presiding over the seasons, over the metres of the Veda, over animals, over life, over the spirit, which are forms of Agni: prayāja ritudevatāśchandodevatāḥ paśudevatāḥ prāṇadevatā ātmadevatā ityādinā bahūn pakṣān upnyasyu brāhmaṇāni ca pradarśya āgneyā eveti siddhāntitam. samiddha is a particple, an epithet of deva;

Susamiddha = well-kindled, a name of Agni

Details:

Ṛṣi (sage/seer): agastyo maitrāvaruṇiḥ [agastya maitrāvaruṇi];
Devatā (deity/subject-matter): āpriyaḥ;
Chandas (meter): nicṛdgāyatrī ;
Svara (tone/note): Swar;

Padapatha [Accents, Plain, Transliterated]:

सम्ऽइ॑द्धः । अ॒द्य । रा॒ज॒सि॒ । दे॒वः । दे॒वैः । स॒ह॒स्र॒ऽजि॒त् । दू॒तः । ह॒व्या । क॒विः । व॒ह॒ ॥
सम्इद्धः । अद्य । राजसि । देवः । देवैः । सहस्रजित् । दूतः । हव्या । कविः । वह ॥
sam-iddhaḥ | adya | rājasi | devaḥ | devaiḥ | sahasra-jit | dūtaḥ | havyā | kaviḥ | vaha

Multi-layer Annotation of the Ṛgveda

[Rigveda 1.188.1 English analysis of grammar]