βάπτωbáptō

to whelm, i.e. cover wholly with a fluid; in the New Testament only in a qualified or special sense, i.e. (literally) to moisten (a part of one's person), or (by implication) to stain (as with dye)

Greek (New Testament) · G911

Meanings

(a) to dip: Luke 16:24, John 13:26 (ἐμβ-, L)

(b) to dip in dye, to dye: Revelation 19:13.

Same root

ἐμβάπτωembáptō · G1686to whelm on, i.e. wet (a part of the person, etc.) by contact with a fluid
βαπτίζωbaptízō · G907to immerse, submerge; to make whelmed (i.e. fully wet); used only (in the New Testament) of ceremonial ablution, especially (technically) of the ordinance of Christian baptism

Where it appears

Appears 4 times in the Bible.

Luke 16:24 “The rich man shouted, ‘Father Abraham, have some pity! Send Lazarus over here to dip the tip of his finger in water and cool my tongue. I am in anguish in these flames.’
John 13:26 Jesus responded, “It is the one to whom I give the bread I dip in the bowl.” And when he had dipped it, he gave it to Judas, son of Simon Iscariot.
Revelation 19:13 He wore a robe dipped in blood, and his title was the Word of God.

See every passage

Luke 16:24
John 13:26
Revelation 19:13

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