To be physically of use, needful, or necessary to; (only in 3rd person). Obsolete. Object originally dative.
Of a thing: to be needful or necessary (to a person or purpose). intransitive. With to and noun phrase of the person affected or with a personal…
(it) needs one: it is necessary for one (to do something). Obsolete. intransitive. With to-infinitive. Obsolete.