Words related to post-
1540s, "contrary to nature, reason, or common sense," from Latin praeposterus "absurd, contrary to nature, inverted, perverted, in reverse order," literally "before-behind" (compare topsy-turvy,cart before the horse), from prae "before" (see pre-) + posterus "subsequent, coming after," from post "after" (see post-).
The sense gradually shaded into "foolish, ridiculous, stupid, absurd." The literal meaning "reversed in order or arrangement, having that last which ought to be first" (1550s) is now obsolete in English. In 17c. English also had a verb preposterate "to make preposterous, pervert, invert." Related: Preposterously; preposterousness.
1570s, "inferior in rank" (1540s as a noun, "junior pupil, freshman"), senses now obsolete, from French puisné (Modern French puîné), from Old French puisne "born later, younger, youngest" (12c., contrasted with aisné "first-born").
This is from puis nez, from puis "afterward" (from Vulgar Latin *postius, from Latin postea "after this, hereafter," from post "after," see post-, + ea "there") + Old French né "born," from Latin natus, past participle of nasci "be born" (Old Latin gnasci; from PIE root *gene- "give birth, beget"). Compare puisne.
The sense of "small, weak, insignificant, imperfectly developed in size or strength" is recorded from 1590s. Related: Puniness.
word-forming element of Latin origin meaning "backwards; behind," from Latin retro (prep.) "backward, back, behind," usually in reference to place or position, rarely of time, "formerly, in the past," probably originally the ablative form of *reteros, based on re- "back" (see re-).
L. retro stands to re- as intro, "in, within"; to in, "in," and as citro, "hither," stands to cis, "on this side." [Klein]
Common in combinations in post-classical Latin (the classical equivalent was post-). Active in English as a word-forming element from mid-20c.