ἐπιδύωepidýō

to go down, set (of the sun): Ephesians 4:26.

Greek (New Testament) · G1931

Same root

ἐπίepí · G1909properly, meaning superimposition (of time, place, order, etc.), as a relation of distribution (with the genitive case), i.e. over, upon, etc.; of rest (with the dative case) at, on, etc.; of direction (with the accusative case) towards, upon, etc.
δύνωdýnō · G1416to go "down"

Where it appears

Appears 1 times in the Bible.

Ephesians 4:26 And “don’t sin by letting anger control you.” Don’t let the sun go down while you are still angry,

Source: G. Abbott-Smith, A Manual Greek Lexicon of the New Testament (1922), public domain.