Fa

The main article - Discourse words.

«Fa» - «فَ» - preposition or prefixed result particle or prefixed resumption particle or prefixed conjunction.

(2:34) And when We called, (addressing) to the Angels: «Subject to Adam!», - so (Arab. فَ, fa) they became subjected except Iblis, he refused and became arrogant, and became of the rejector.