Kenneth G. Wilson (1923–). The Columbia Guide to Standard American English. 1993.
entrust, intrust, trust (vv.)
Entrust is the usual spelling, intrust a relatively rare variant spelling. You entrust someone with something, or entrust something to someone. Trust and entrust are not entirely interchangeable: I will trust you and intransitive uses, as in She just naturally trusts, are Standard, as are structures such as He is too trusting that use the present participle as a predicate adjective. Entrust, however, can only be transitive: I will entrust you with my car is Standard, but I will entrust you is unidiomatic, as is She is entrusting.
