corder.

Ultimately from Vulgar Latin *cordārium. The DCVB argue that it is borrowed from Spanish cordero on the following grounds: it is not attested in Catalan until the fifteenth century, it has existed from the beginning alongside a Castilian-like variant cordero, and its distribution is limited to western dialects. Coromines argues that it was inherited by Catalan on the following grounds: its distribution is not limited to border regions but rather is general throughout the west – including areas relatively secluded from Castilian influence such as Vall Ferrera – and it is documented since ca. 1400 even in the ‘purest’ Valencian writers, which is about as early as one could expect a western dialectal word to appear in writing, given that written Catalan had been highly standardized till then. As for the Valencian variant cordero, Coromines explains it as a borrowing from local Mozarabic.

From corda + -er.