expatior
Could not find expassum in Logeion dictionaries.
expassum neuter nominative singular, perfect passive participle masculine genitive plural, perfect passive participle neuter nominative singular, perfect passive participle neuter genitive plural, perfect passive participle neuter accusative singular, perfect passive participle neuter vocative singular, perfect passive participle masculine accusative singular of expatior
expătĭor, ti, v. exspatior.
expatior, s. ex-spatior.
See: expatiari
expătĭor, v. exspatior.