Definition of overest in US English:

overest

adjective

  • Highest in position, uppermost; outermost, covering all the rest; farthest away. Now Newfoundland and rare.

Origin

Middle English; earliest use found in Statutes of the Realm. Superlative of over. Compare Old High German obarōst, adverb, obarōsto, adjective (Middle High German oberest, adjective, German oberst (adjective) highest, Oberst (noun) superior, colonel).

Pronunciation

overest

/ˈəʊv(ə)rɪst/