Strong's H188 · Hebrew

'owy

o'-ee

probably from 183 (in the sense of crying out after); lamentation; also interjectionally Oh!

Scholarly Lexicons

Brown-Driver-Briggs (BDB)

 H188 אוֹי (onomatop.) woe! an empassioned expression of grief and despair  

Brown-Driver-Briggs Hebrew Lexicon (BDB), 1906 — public domain