Use these substitutions - α=a, β=b, γ=g, δ=d, ε=ee, ζ=z, η=h, θ=th, ι=i, κ=k, λ=l, μ=m, ν=n, ξ=x, ο=o, π=p, ρ=r, σ=s, τ=t, υ=u, φ=f, χ=kh, ψ=ps, ω=oo