lass (n.)youdaoicibaDictYouDict[lass 词源字典]
"young woman," c. 1300, probably from a Scandinavian source akin to Old Swedish løsk kona "unmarried woman," but also perhaps related to Old Norse löskr "idle, weak," West Frisian lask "light, thin." Liberman suggests Old Danish las "rag." "Slang words for 'rag' sometimes acquire the jocular meaning 'child' and especially 'girl.'" "Used now only of mean girls" [Johnson, who also has lasslorn "forsaken by his mistress"]. Scottish diminutive lassie first recorded 1725.[lass etymology, lass origin, 英语词源]
Rastafarian (n.)youdaoicibaDictYouDict
1955 (Rastafarite is found from 1953), from Rastafari, Jamaican religion built around writings of Marcus Garvey and belief that Haile Selassie (1892-1975), former emperor of Ethiopia, was God. From Ras Tafari, Selassie's title from 1916 to his accession in 1936, from Amharic ras "chief, head" (from Arabic ra's) + tafari "to be feared." As an adjective from 1960.