abrevar

To water animals — leading livestock to drink, or filling a trough for them (abrevar el ganado). Also used figuratively and somewhat literarily for drinking deeply from a source of ideas (abrevarse en las fuentes clásicas). A rural/literary verb, not part of everyday urban vocabulary.

• El pastor llevó las ovejas al río para abrevarlas. — The shepherd led the sheep to the river to water them.
• Construyeron un pilón de piedra donde abreva el ganado. — They built a stone trough where the livestock drink.
• El poeta decía abrevarse en la obra de los clásicos griegos. — The poet said he drew deeply from the work of the Greek classics.

Don't confuse abrevar (to water animals / draw from a source) with abreviar (to abbreviate, shorten) — they look alike but are unrelated in meaning.

Often confused with abreviar.