英语词源字典 - 在线词源网站

in vivo [in vivo 词源字典]: Latin; "within a living organism" (see viva).[in vivo etymology, in vivo origin, 英语词源]
survivor (n.): early 15c. in the legal sense of "one who outlives another," agent noun from survive. Meaning "one who has a knack for pulling through adversity" is attested from 1971. Survivor syndrome is first recorded 1968.