noun, masculine/kasˈkiʝo/plural: casquillos
ferrule, tip; shell (of bullet)
Etymology tree Vulgar Latin *quassicāre Old Spanish cascar Spanish cascardeverb. Spanish casco Proto-Indo-European *-lós Proto-Indo-European *-elós Proto-Italic *-elos Latin -lus Latin -ellus Old Spanish -iello Spanish -illo Spanish casquillo From casco + -illo.