Ob*ven"tion (?), n. [L. obvention, fr. obvenire to come before or in the way of, to befall; ob (see Ob-) + venire to come: cf.F. obvention.]
The act of happening incidentally; that which happens casually; an incidental advantage; an occasional offering.
[Obs.] "Tithes and other obventions
Legacies bequeathed by the deaths of princes and great persons, and other casualities and obventions.
© Webster 1913.