argue (v.)youdaoicibaDictYouDict[argue 词源字典]
c. 1300, "to make reasoned statements to prove or refute a proposition," from Old French arguer "maintain an opinion or view; harry, reproach, accuse, blame" (12c.), from Latin argutare "to prattle, prate," frequentative of arguere "make clear, make known, prove, declare, demonstrate," from PIE *argu-yo-, from root *arg- "to shine, be white, bright, clear" (see argent). Meaning "to oppose, dispute" is from late 14c. Related: Argued; arguing.[argue etymology, argue origin, 英语词源]
argumentative (adj.)youdaoicibaDictYouDict
mid-15c., "pertaining to arguments," from Old French argumentatif or directly from Latin argumentat-, past participle stem of argumentari (see argue) + -ive. Meaning "fond of arguing" is recorded from 1660s. Related: Argumentatively; argumentativeness.
MortonyoudaoicibaDictYouDict
surname, from the many Mortons on the map of England, literally "moor or marsh settlement." Morton's Fork (1759) is in reference to John Morton (c. 1420-1500), archbishop of Canterbury, who levied forced loans under Henry VII by arguing the obviously rich could afford to pay and the obviously poor clearly were living frugally and thus had savings and could pay, too.
opinion (n.)youdaoicibaDictYouDict
c. 1300, from Old French opinion "opinion, view, judgements founded upon probabilities" (12c.), from Latin opinionem (nominative opinio) "opinion, conjecture, fancy, belief, what one thinks; appreciation, esteem," from stem of opinari "think, judge, suppose, opine," from PIE *op- (2) "to choose" (see option).
Where there is much desire to learn, there of necessity will be much arguing, much writing, many opinions; for opinion in good men is but knowledge in the making. [Milton, "Areopagitica"]
save (v.)youdaoicibaDictYouDict
c. 1200, "to deliver from some danger; rescue from peril, bring to safety," also "prevent the death of;" also theological, "to deliver from sin or its consequences; admit to eternal life; gain salvation," from Old French sauver "keep (safe), protect, redeem," from Late Latin salvare "make safe, secure," from Latin salvus "safe" (see safe (adj.)). From c. 1300 as "reserve for future use, hold back, store up instead of spending;" hence "keep possession of" (late 14c.).

Save face (1898) first was used among the British community in China and is said to be from Chinese; it has not been found in Chinese, but tiu lien "to lose face" does occur. To not (do something) to save one's life is recorded from 1848. To save (one's) breath "cease talking or arguing" is from 1926.