From an obsolete phao (to shine or make manifest, especially by rays; compare phaino, phemi); luminousness (in the widest application, natural or artificial, abstract or concrete, literal or figurative) -- fire, light.
see GREEK phaino
see GREEK phemi
φῶς (phōs) − 48 Occurrences
φῶτα (phōta) − 1 Occurrence
φωτί (phōti) − 9 Occurrences
φωτὸς (phōtos) − 14 Occurrences
φώτων (phōtōn) − 1 Occurrence