verb

• (intransitive, followed by on or upon, formerly also by of) To be contingent or conditioned; to have something as a necessary condition; to hinge on.
• (intransitive, usually followed by on or upon) To trust; to have confidence; to rely.
• (now literary) To hang down; to be sustained by being fastened or attached to something above.
• (archaic) To be pending; to be undetermined or undecided.
• (transitive) To cause to be contingent or dependent on; to set as a necessity.