α β γ δ ε ζ θ κ λ μ ν ξ ο π σ τ υ φ χ ψ

Letter ὥ has 3 occurences.

Count word def
171 ὥρα an "hour" (literally or figuratively)
235 ὥσπερ just as, i.e. exactly like
229 ὥστε so too, i.e. thus therefore (in various relations of consecution, as follow)