Præfix

"In searching for the original nouns from which verbs have been formed, we must always consider if the verb we are inquiring about be a primitive verb or a secondary verb, containing either of the præfixes, a, be, ge, for, on, in, to, with, &c. &c. In these cases we must strip the verb of its præfix, and examine its derivation under its earlier form. The verbs with a præfix are obviously of later origin than the verbs to which the præfix has not been applied."