英语词源字典 - 在线词源网站

disrespectful (adj.)[disrespectful 词源字典]: 1670s; see dis- + respectful. Related: Disrespectfully.[disrespectful etymology, disrespectful origin, 英语词源]
flip (adj.): "talkative and disrespectfully smart," see flippant.
respectful (adj.): 1580s, "characterized by respect" (implied in respectfully), from respect (n.) + -ful. Meaning "full of outward civility" attested from 1680s. Related: Respectfulness.
salute (v.): late 14c., "to greet courteously and respectfully," earlier salue (c. 1300), from Latin salutare "to greet, pay respects," literally "wish health to," from salus (genitive salutis) "greeting, good health," related to salvus "safe" (see safe (adj.)). The military and nautical sense of "display flags, fire cannons, etc., as a mark of respect" is recorded from 1580s; specific sense of "raise the hand to the cap in the presence of a superior officer" is from 1844.