dilate

First attested in 1393, in Middle English; inherited from Middle English dilaten, from Old French dilater, from Latin dīlātō (“to spread out”), from dī- + lātus (“wide”) + -ō (verb-forming suffix). Doublet of dilatate.

First attested in 1399, in Middle English; inherited from Middle English dilaten (“to delay, tarry”), borrowed from Latin dīlātus, perfect passive participle of Latin dīfferō (see -ate (verb-forming suffix)). If so, Doublet of defer and differ; see also infer, relate and refer, collate and confer, delate and defer, as well as prefer and prelate among others. Alternatively, from Latin dīlātō, see Etymology 1.

First attested in 1471, in Middle English; borrowed from Latin dīlātus, see -ate (adjective-forming suffix) and Etymology 2 for more.