Meaning of INFINITIVE in English

n. & adj.

n. a form of a verb expressing the verbal notion without reference to a particular subject, tense, etc. (e.g. see in we came to see, let him see).

adj. having this form. infinitival adj. infinitivally adv.

[ L infinitivus (as IN-(1), finitivus definite f. finire finit- define) ]

Concise Oxford English dictionary.      Краткий оксфордский словарь английского языка.