To Hinge

1. (transitive) To attach by, or equip with a hinge.
2. (intransitive, with on or upon) To depend on something.
3. (transitive, archaeology) The breaking off of the distal end of a knapped stone flake whose presumed course across the face of the stone core was truncated prematurely, leaving not a feathered distal end but instead the scar of a nearly perpendicular break.
4. (obsolete) To bend