- Alternative form of
From Old Portuguese can, from Latin canis, canem, from Proto-Italic *kō (accusative *kwanem), from Proto-Indo-European *ḱwṓ (accusative *ḱwónm̥). Compare Galician can, Spanish can, Catalan ca, French chien, Italian cane, Romanian câine and Aromanian cãne.
In Brazil, cão is somewhat formal, and cachorro is the most common term in neutral or informal contexts.
cão m (please add plural)