EXPA'TIATE, verb intransitive [Latin expatior; ex and spatior, to wander, to enlarge in discourse, spatium, space, probably allied to pateo, to open. 1. To open at large; to rove without prescribed limits; to wander in space without restraint. He bids his soul expatiate in the skies. Expatiate free o'er all this scene of man. 2. To enlarge in discourse or writing; to be copious in argument or discussion. On important topics the orator thinks himself at liberty to expatiate
Source: Webster's 1828 American Dictionary ↗ · public-domain · returned verbatim, no AI