Restriction
late Middle English: from Old French, or from Latin restrictio(n- ), from restringere ‘bind fast, confine’ (see restrict).
wiktionary
From Middle English restriccioun, from Anglo-Norman restriction, Middle French restriction, and their source, Late Latin restrictiō, from Latin restringō.
Morphologically restrict + -ion.
etymonline
restriction (n.)
early 15c., restriccioun, "a cessation, the property of staunching bleeding," from Old French restriction (14c.) and directly from Late Latin restrictionem (nominative restrictio) "limitation," noun of action from past-participle stem of Latin restringere "restrict, bind fast, restrain," from re- "back" (see re-) + stringere "draw tight" (see strain (v.)). General sense of "that which restricts" is by early 15c. Meaning "act, process, or fact of restricting; state of being restricted" is from 1620s.
