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! Type in unicode polytonic Greek using beta code as indicated below:
/a => ά \a => ὰ =a => ᾶ )a => ἀ
(a => ἁ !a => ᾳ +i => ϊ h => η
q => θ x => χ c => ξ z = ζ
j => ψ w => ω s => σ, ς  
Combine punctuation marks when necessary e.g. )/a => ἄ
Η, η (ἦτα) (τό)

1   eta, 7ª letra do alfabeto grego

num. 2   ηʹ =8 ou 8º 3   ͵η =8000 ou 8000º.