LATIN DICTIONARYLexicon Latīnum
adverb

adverbiāliter

adverbiāliter (comparative adverbiālius, superlative adverbiālissimē)
Classical[ad.wɛr.biˈaː.lɪ.tɛr]Ecclesiastical[ad.ver.biˈaː.li.ter]

Meaning

  1. adverbially; in a manner like or pertaining to an adverb

adverbĭālĭter, adv. id., in gram.,
I. in the manner of an adverb, adverbially, Diom. p. 403; Charis. 197; Prisc. 1012 P.

Origins

Derived from adverbiālis (“adverbial”) + -ter (“-ly”, adverb-forming suffix).

Quick answers

What does adverbiāliter mean in Latin?
adverbiāliter, a adverb, means “adverbially; in a manner like or pertaining to an adverb”.
How do you pronounce adverbiāliter?
In classical Latin, [ad.wɛr.biˈaː.lɪ.tɛr]; in ecclesiastical (church) Latin, [ad.ver.biˈaː.li.ter].