Astringe
Astringe (as*trinj") , transitive verb
[Latin astringere; ad + stringere to draw tight. Compare Astrict, and see Strain, transitive verb]
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.
2.
To bind by moral or legal obligation. — Wolsey