LATIN DICTIONARYLexicon Latīnum
adverb

rēgāliter

rēgāliter (comparative rēgālius, superlative rēgālissimē)
Classical[reːˈɡaː.lɪ.tɛr]Ecclesiastical[reˈɡaː.li.ter]

Meaning

  1. royally, kingly; in a manner like or pertaining to a king

Latīnē defined in Latin in our graded readers

Charlton Lewis's shorter dictionary for students: the same scholarship in plain, modern definitions.

rēgāliter adv.
regalis, royally, splendidly : sacrificio regaliter Minervae facto, L.— Despotically, domineeringly precibus minas addere, O.

Origins

Proto-Indo-European *-teros? Latin -ter Latin rēgāliter From rēgālis (“regal, royal”) + -ter (“-ly”, adverb-forming suffix).

Quick answers

What does rēgāliter mean in Latin?
rēgāliter, a adverb, means “royally, kingly; in a manner like or pertaining to a king”.
How do you pronounce rēgāliter?
In classical Latin, [reːˈɡaː.lɪ.tɛr]; in ecclesiastical (church) Latin, [reˈɡaː.li.ter].