To bind tightly; to constrict, constrain, or restrict strictly.
From Latin 'astrictus', past participle of 'astringere' (to bind tightly). The prefix 'a-' intensifies the root 'strict' meaning to draw tight or constrain.
This word is the legal and medical world's favorite—'astrictive contracts' bind you tightly, and 'astringent' medicines tighten tissues—it's the same Latin root used across centuries to describe anything that squeezes!
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