c. 1200, "excused, exempt, free, clear" (of debt, obligation, penalty, etc.), from Old French quite, quitte "free, clear, entire, at liberty; discharged; unmarried," and directly from Medieval Latin quitus, quittus, from Latin quietus "free" (in Medieval Latin "free from war, debts, etc."), also "calm, resting" (from PIE root *kweie- "to rest, be quiet").
From mid-13c. as "deprived of." From c. 1300 of real property, "exempt from taxes or other dues or claims."
c. 1200, deliveren, "save, rescue, set free, liberate," from Old French delivrer "to set free; remove; save, preserve; hand over (goods)," also used of childbirth, from Late Latin deliberare, from de "away" (see de-) + Latin liberare "to free," from liber "free, unrestricted, unimpeded" (see liberal (adj.)).
The sense of "to bring (a woman) to childbirth," in English is from c. 1300. Sense of "hand over, give, give up, yield" is from c. 1300 in English, which is in opposition to its etymological sense. Meaning "to project, cast, strike, throw" is from c. 1400. Related: Delivered; delivering.