Relating to, involving, or having the nature of extortion; tending to extort or extract forcibly.
From 'extort' plus '-ive' (adjective suffix meaning 'tending to'). Similar formation to words like 'creative' or 'destructive.'
English has so many similar words for 'involving extortion' (extortive, extortive, extortionary, extortionate) that it shows how one concept can sprout multiple vocabulary branches.
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