cartucho
/kaɾˈtut͡ʃo/ · B2 · noun · m
cartridge
🖨️ cartucho = carta (card/paper) + -ucho; cartridge once held paper-wrapped powder
Cartucho comes from Italian cartuccia, from carta 'paper', because early cartridges were paper tubes holding gunpowder. The same paper root is in carta and cartón, so cartucho links to ink and ammo cases alike.