νυμφώνnymphṓn

the bridal room

Greek (New Testament) · G3567

Meanings

the bride-chamber (Heb. חֻפָּה, LXX, παστός, Psalms 19:5, Joel 2:16): Matthew 22:10; οἱ υἱοὶ τοῦ ν. (cf. classical Greek νυμφαγωγός, νυμφευτής), the bridegroom's friends who have charge of the nuptial arrangements: Matthew 9:15, Mark 2:19, Luke 5:34.

Same root

νύμφηnýmphē · G3565compare Latin "nupto," to marry); a young married woman (as veiled), including a betrothed girl; by implication, a son's wife

Where it appears

Appears 3 times in the Bible.

Matthew 9:15 Jesus replied, “Do wedding guests mourn while celebrating with the groom? Of course not. But someday the groom will be taken away from them, and then they will fast.
Mark 2:19 Jesus replied, “Do wedding guests fast while celebrating with the groom? Of course not. They can’t fast while the groom is with them.
Luke 5:34 Jesus responded, “Do wedding guests fast while celebrating with the groom? Of course not.

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