terco

Etymology
Attested from the fifteenth century, probably cognate with 🇨🇬 and 🇨🇬. Several farther etymologies have been suggested : a shared proto-Romance word from, compare 🇨🇬); a derivation from ; or, reversing the usual derivation, from rare  (whence ), syncopated from rare 16th. century , from ; or from , via a verb derived in . As the word has no mediaeval attestation, a southern European borrowing from dialectal Italian may be most likely; of the proto-Romance theories, derivation from  is phonetically the easiest.

Adjective

 * 1) stubborn, stiff-necked, obstinate, willful, dogged, pigheaded, hardheaded, bullheaded