Rig Veda 6.48.12

Sanskrit text [Accents, Plain, Transliterated]:

या शर्धा॑य॒ मारु॑ताय॒ स्वभा॑नवे॒ श्रवोऽमृ॑त्यु॒ धुक्ष॑त । या मृ॑ळी॒के म॒रुतां॑ तु॒राणां॒ या सु॒म्नैरे॑व॒याव॑री ॥
या शर्धाय मारुताय स्वभानवे श्रवोऽमृत्यु धुक्षत । या मृळीके मरुतां तुराणां या सुम्नैरेवयावरी ॥
yā śardhāya mārutāya svabhānave śravo 'mṛtyu dhukṣata | yā mṛḻīke marutāṃ turāṇāṃ yā sumnair evayāvarī ||

English translation:

“She who yields immortal food to the powerful, self-irradiating band of the Maruts, who (is anxious) for the gratiication of the self-moving Maruts, who traverse the sky with (the passing waters0, shedding delight.”

Commentary by Sāyaṇa: Ṛgveda-bhāṣya

Sumnair evayāvarī: means of happiness, sukhahetubhūtaiḥ;

Evayāvari = from eva, who or what goes, as a horse, or the water of mid-air, the rain, and yāvarī, she who gies with, saha yāti ya, that is, who proceeds with rains, giving plural asure to others, anyeṣām sukhārtam vṛṣṭijālaiḥ saha gacchanti

Details:

Ṛṣi (sage/seer): śaṃyurbārhaspatyaḥ [śaṃyurbārhaspatya];
Devatā (deity/subject-matter): marūtaḥ;
Chandas (meter): bhurigbṛhatī ;
Svara (tone/note): Swar;

Padapatha [Accents, Plain, Transliterated]:

या । शर्धा॑य । मारु॑ताय । स्वऽभा॑नवे । श्रवः॑ । अमृ॑त्यु । धुक्ष॑त । या । मृ॒ळी॒के । म॒रुता॑म् । तु॒राणा॑म् । या । सु॒म्नैः । ए॒व॒ऽयाव॑री ॥
या । शर्धाय । मारुताय । स्वभानवे । श्रवः । अमृत्यु । धुक्षत । या । मृळीके । मरुताम् । तुराणाम् । या । सुम्नैः । एवयावरी ॥
yā | śardhāya | mārutāya | sva-bhānave | śravaḥ | amṛtyu | dhukṣata | yā | mṛḷīke | marutām | turāṇām | yā | sumnaiḥ | eva-yāvarī

Multi-layer Annotation of the Ṛgveda

[Rigveda 6.48.12 English analysis of grammar]