palmetto (n.)youdaoicibaDictYouDict[palmetto 词源字典]
1580s, from Spanish palmito "dwarf fan palm tree," diminutive of palma "palm tree," from Latin palma (see palm (n.2)). The suffix was subsequently Italianized. The Palmetto Flag was an emblem of South Carolina after secession (1860); the state was called Palmetto State from at least 1837.[palmetto etymology, palmetto origin, 英语词源]