from
The Collaborative International Dictionary of English v.0.48
Expatiate \Ex*pa"ti*ate\, v. i. [imp. & p. p. {Expatiated}; p.
pr. & vb. n. {Expariating}.] [L. expatiatus, exspatiatus, p.
p. of expatiari, exspatiari, to expatiate; ex out + spatiari
to walk about spread out, fr. spatium space. See {Space}.]
1. To range at large, or without restraint.
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Bids his free soul expatiate in the skies. --Pope.
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2. To enlarge in discourse or writing; to be copious in
argument or discussion; to descant.
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He expatiated on the inconveniences of trade.
--Addison.
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