1.  hypothecate(v = verb.communication) - pledge without delivery or title of possession;
is one way to pledge
Sample sentences: Somebody ----s something

2.  hypothecate(v = verb.cognition) conjecture, hypothesise, hypothesize, speculate, suppose, theorise, theorize - to believe especially on uncertain or tentative grounds; "Scientists supposed that large dinosaurs lived in swamps"
is one way to anticipate, expect
Derived forms noun hypothesis₂, noun hypothesis₃
Sample sentences: They hypothecate that there was a traffic accident

   To subject, as property, to liability for a debt or engagement without delivery of possession or transfer of title; to pledge without delivery of possession; to mortgage, as ships, or other personal property; to make a contract by bottomry. See Hypothecation, Bottomry. [1913 Webster]
"He had found the treasury empty and the pay of the navy in arrear. He had no power to hypothecate any part of the public revenue. Those who lent him money lent it on no security but his bare word." [1913 Webster]

hypothecate, v.tr. pledge, mortgage.

Derivative:
hypothecation n.

Etymology:
med.L hypothecare (as HYPOTHEC)

VB  give security, give bail, give substantial bail, go bail, pawn, impawn, spout, mortgage, hypothecate, impignorate, guarantee, warrant, warrantee, assure, accept, indorse, underwrite, insure, cosign, countersign, sponsor, cosponsor, execute, stamp, sign, seal, let, sett, grant a lease, take a lease, hold a lease, hold in pledge, lend on security.