As relative or conjunctive adverb: When, at the time that. (Often correlative to þa in sense 1.)

At the time that; when. Obsolete.

As nominal relative (cf. what, pron. III.**), or as correlative to then (implied and sometimes… In reference to a definite actual occurrence or…

In temporal use. In a subordinate clause: when. Cf. tho, adv. 2b.

= when, conj. 1. Obsolete.

At the, or a, time at which; in a case in which: = when, conj. 1 4.

while as (also occasionally as one word, cf. whenas, adv. conj., whereas, adv. conj.). = A. 2b. Obsolete. rare.

= when, adv. conj.pron. int.n.