elvish (adj.)youdaoicibaDictYouDict[elvish 词源字典]
c. 1200, aluisc, "belonging to or pertaining to the elves; supernatural," from elf + -ish. Old English used ilfig in this sense.[elvish etymology, elvish origin, 英语词源]
pelvis (n.)youdaoicibaDictYouDict
1610s, "basin-like cavity formed by the bones of the pelvic girdle," from Modern Latin, from Latin pelvis "basin, laver," Old Latin peluis "basin," from PIE *pel- "container" (cognates: Sanskrit palavi "vessel," Greek pelex "helmet," pelike "goblet, bowl," Old Norse and Old English full "cup").