Alphabet

Α α a (alpha) 1
Β β b (beta) 2
Γ γ g (gamma) 3
Δ δ d (delta) 4
Ε ε e (epsilon) 5
Ϝ ϛ w (vau, digamma, stigma) 6
Ζ ζ dz (dzeta) 7
Η η e (eta) 8
Θ θ th (theta) 9
Ι ι i (iota) 10
Κ κ k (kappa) 20
Λ λ l (lambda) 30
Μ μ m (mu) 40
Ν ν n (nu) 50
Ξ ξ ks (xi) 60
Ο ο o (omikron) 70
Π π p (pi) 80
Ϙ q (koppa) 900
Ρ ρ r (rho) 100
Σ σ/ς s (sigma) 200
Τ τ t (tau) 300
Υ υ y (upsilon) 400
Φ φ f (fi) 500
Χ χ ch (chi) 600
Ψ ψ ps (psi) 700
Ω ω o (omega) 800
ϡ ts (sampi) 900

Grey highlighted letters were used, at the time of NT, only as symbols for numbers.