Definition of overcomingly in US English:

overcomingly

adverb

  • In an overcoming manner; presumptuously; overwhelmingly, overpoweringly.

Origin

Mid 17th century; earliest use found in Henry More (1614–1687), philosopher, poet, and theologian. From overcoming + -ly.

Pronunciation

overcomingly

/ˌəʊvəˈkʌmɪŋli/