noun, masculine/koneˈxiʝo/plural: conejillos
diminutive of conejo; guinea pig
Synonyms: conejillo de Indias, cuy
Etymology tree Spanish conejo Proto-Indo-European *-lós Proto-Indo-European *-elós Proto-Italic *-elos Latin -lus Latin -ellus Old Spanish -iello Spanish -illo Spanish conejillo From conejo + -illo.