late 14c., "descend from," from Old French deriver "to flow, pour out; derive, originate," from Latin derivare "to lead or draw off (a stream of water) from its source" (in Late Latin also "to derive"), from phrase de rivo (de "from" + rivus "stream," from PIE root *rei- "to run, flow").
From c. 1500 as "obtain by a process of reasoning." In reference to words, "arise by a process of word-formation," 1550s; meaning "trace or show derivation" is from c. 1600. General sense of "get, gain, obtain" (as from a source or origin) is from 1560s; that of "arise, spring" (from) a source or origin is from 1660s. Related: Derived; deriving.
c. 1300, "bring about, cause, effect," from Old French procurer "care for, be occupied with; bring about, cause; acquire, provide" (13c.) and directly from Late Latin procurare "manage, take care of;" from pro "in behalf of" (see pro-) + curare "care for" (see cure (v.)).
The main modern sense of "obtain; recruit" (late 14c.) is via the meaning "take pains to get or bring about" (mid-14c.). It had broader meanings in Middle English: to procure to slay was "cause to be slain;" procure to break, "cause to be broken," etc. The meaning "to obtain (women) for sexual gratification" of others is attested from c. 1600. Related: Procured; procuring.
Old English grippan "to grip, seize, obtain" (class I strong verb; past tense grap, past participle gripen), from West Germanic *greipanan (source also of Old High German gripfen "to rob," Old English gripan "to seize;" see gripe (v.)). Related: Gripped; gripping. French gripper "to seize," griffe "claw" are Germanic loan-words.
"extortionate rent, rent raised to the highest possible limit, rent greater than any tenant can be expected to pay," especially of land-rents in Ireland, c. 1600, from rent (n.) + rack (v.1) in the otherwise obsolete sense of "extort or obtain by rapacity, raise (rent, etc.) above a fair level" (1550s).