Rishi: Yājñavalkya (traditional Śukla-Yajurvedic attribution for VS liturgical strata)
Devata: Medhā as sought from Varuṇa, Agni-Prajāpati, Indra-Vāyu, and Dhātṛ
Chandas: Mixed/prose-like yajus-formula (not a fixed ṛgvedic metre)
Samhita Patha (Devanagari)मे॒धां मे॒ वरु॑णो ददातु मे॒धाम॒ग्निः प्र॒जाप॑तिः । मे॒धामिन्द्र॑श्च वा॒युश्च॑ मे॒धां धा॒ता द॑दातु मे॒ स्वाहा॑
Transliterationmēdhā́m mē váruṇo dadātu mēdhā́m agníḥ prajā́patiḥ | mēdhā́m índraś ca vāyúś ca mēdhā́m dhātā́ dadātu mē svā́hā ||
Translationഎനിക്ക് വരുണൻ മേധ (ബുദ്ധി) നല്കട്ടെ; അഗ്നി—പ്രജാപതിയോടുകൂടെ—എനിക്ക് മേധ നല്കട്ടെ. ഇന്ദ്രനും വായുവും എനിക്ക് മേധ നല്കട്ടെ; ധാതൃ എനിക്ക് മേധ നല്കട്ടെ—സ്വാഹാ!
Padapatha (Word Analysis)मेधाम् । मे । वरुणः । ददातु । मेधाम् । अग्निः । प्रजापतिः । मेधाम् । इन्द्रः । च । वायुः । च । मेधाम् । धाता । ददातु । मे । स्वाहा ।
Word by Wordमेधाम्intelligence; sacred insight मेधाम्intelligence; sacred insight मेधाम्intelligence; sacred insight मेधाम्intelligence; sacred insight धाताDhātṛ (the Creator/Sustainer) स्वाहाsvāhā (ritual exclamation) 
Viniyoga (Ritual Application)