Definition of strengthing in US English:

strengthing

noun

  • Strengthening.

adjective

rare
  • That gives strength; = "strengthening".

Origin

Late Middle English (in an earlier sense). From strength + -ing<br>late 17th century; earliest use found in Funeral Account. From strength + -ing.

Pronunciation

strengthing

/ˈstrɛŋ(k)θɪŋ/