astriction (n.)

"act of binding close or constricting," especially contraction by applications, 1560s, from Latin astrictionem (nominative astrictio) "a power of contracting," noun of action from past-participle stem of astringere "to bind fast, tighten, contract," from assimilated form of ad "to" (see ad-) + stringere "draw tight" (see strain (v.)). Related: Astrictive (1550s). As verbs, astrict is from 1510s; astringe from 1520s.

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