As·tringe v. t. [imp. & p. p. Astringed p. pr. & vb. n. Astringing ]
1. To bind fast; to constrict; to contract; to cause parts to draw together; to compress.
Which contraction . . . astringeth the moisture of the brain and thereby sendeth tears into the eyes. --Bacon.
2. To bind by moral or legal obligation.
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astringe
v 1: constrict or bind or draw together; "Lemon juice astringes
the tissue in the mouth"
2: become constricted or compressed; "The cold substance
astringes"