Words that come from Ancient Greek ὄρνιθ-

40 words across 9 languages descend from Ancient Greek ὄρνιθ- — including ornithopter, ornithopod, ornithosis, ornithogenic, ornithic, ornithophilous, ornithophilic, ornithomancy.

See the etymology of ὄρνιθ- itself →

English (30)

French (2)

Translingual (2)

Esperanto (1)

Ido (1)

Romanian (1)

Spanish (1)

Galician (1)

Portuguese (1)