desert (v.)youdaoicibaDictYouDict
"to leave one's duty," late 14c., from Old French deserter (12c.) "leave," literally "undo or sever connection," from Late Latin desertare, frequentative of Latin deserere "to abandon, to leave, forsake, give up, leave in the lurch," from de- "undo" (see de-) + serere "join together, put in a row" (see series). Military sense is first recorded 1640s. Related: Deserted; deserting.
divorce (n.)youdaoicibaDictYouDict
late 14c., from Old French divorce (14c.), from Latin divortium "separation, dissolution of marriage," from divertere "to separate, leave one's husband, turn aside" (see divert). Not distinguished in English from legal separation until mid-19c.
paralipsis (n.)youdaoicibaDictYouDict
1580s, from Greek paraleipsis "passing by omission," from paraleipein "to leave on one side, pass over, leave untold," from para- "beside" (see para- (1)) + leipein "to leave" (see relinquish).
secede (v.)youdaoicibaDictYouDict
1702, "to leave one's companions," from Latin secedere "go away, withdraw, separate; rebel, revolt" (see secession). Sense of "to withdraw from a political or religious alliance of union" is recorded from 1755, originally especially in reference to the Church of Scotland. Related: Seceded; seceding; seceder.
-ty (1)youdaoicibaDictYouDict
suffix representing "ten" in cardinal numbers that are multiples of 10 (sixty, seventy, etc.), from Old English -tig, from a Germanic root (cognates: Old Saxon, Dutch -tig, Old Frisian -tich, Old Norse -tigr, Old High German -zug, German -zig) that existed as a distinct word in Gothic (tigjus) and Old Norse (tigir) meaning "tens, decades." Compare tithe (n.).

English, like many other Germanic languages, retains traces of a base-12 number system. The most obvious instance is eleven and twelve which ought to be the first two numbers of the "teens" series. Their Old English forms, enleofan and twel(eo)f(an), are more transparent: "leave one" and "leave two."

Old English also had hund endleofantig for "110" and hund twelftig for "120." One hundred was hund teantig. The -tig formation ran through 12 cycles, and could have bequeathed us numbers *eleventy ("110") and *twelfty ("120") had it endured, but already during the Anglo-Saxon period it was being obscured.

Old Norse used hundrað for "120" and þusend for "1,200." Tvauhundrað was "240" and þriuhundrað was "360." Older Germanic legal texts distinguished a "common hundred" (100) from a "great hundred" (120). This duodecimal system is "perhaps due to contact with Babylonia" [Lass, "Old English"].