— expatiation , n. — expatiator , n.
/ik spay"shee ayt'/ , v.i. , expatiated, expatiating .
1. to enlarge in discourse or writing; be copious in description or discussion: to expatiate upon a theme.
2. Archaic. to move or wander about intellectually, imaginatively, etc., without restraint.
[ 1530-40; expatiatus ptp. of ex ( s ) patiari to wander, digress, equiv. to ex- EX- 1 + spatiari to walk about, deriv. of spatium SPACE; see -ATE 1 ]