köken: Probably from Vulgar Latin *carudium, from Ancient Greek καρύδιον (karúdion), from κάρυον (káruon, “nut”); alternatively, from a substrate language: compare carolo. Cognate with Portuguese caroço, Galician carozo. Doublet of garojo, which was inherited via a different development.
köken: From Old Galician-Portuguese espiga, from Latin spīca (“spike”), possibly from Proto-Indo-European *spey- (“sharp, sharp stick”). Cognate with Galician, Spanish, and Catalan espiga, Occitan espic, French épi, Italian spiga and Romanian spic.
rachis, axis, peduncle (elongated axis of an inflorescence in which the individual flowers attach) · corncob (central cylindrical core of an ear of corn (maize) on which the kernels are attached in rows)
köken: Uncertain but probably from earlier știuleț (with a "singular" form then created analogically), borrowed from Bulgarian стулец (stulec). Compare Slovene štulec.