Lexical Definition

‎βαπτίζω‎ baptízō (bap-tid'-zo) to baptize ^G:V
from a derivative of ‎βάπτω‎

Baptist, baptize, wash.

• to 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

Abbott-Smith

βαπτίζω (< βάπτω), [in LXX: IV Ki 5:14 (טבל), Is 21:4, Jth 12:7, Si 31 (34):30*;]
to dip, immerse, sink;
1. generally (in Polyb., iii, 72, of soldiers wading breast-deep; in i, 51, of the sinking of ships); metaph., to overwhelm (Is 21:4; cf. MM, Exp., x); c. cogn. acc., βάπτισμα β., Mk 10:38, 39, Lk 12:50. Mid.,
2. to perform ablutions, wash oneself, bathe (IV Ki 5:14, Jth 12:7, Si 31 (34):30): Mk 7:4; aor. pass, in same sense, Lk 11:38.
3. Of ablution, immersion, as a religious rite, to baptize;
(a) absol.; Mk 1:4, Jo 1:25, 26, 28 3:22, 23, 26 4:2 10:40, I Co 1:17; ὁ βαπτίζων (= ὁ βαπτιστής, M, Pr., 127), Mk 6:14, 24; c. acc., Jo 4:1, Ac 8:38, I Co 1:14, 16; c. cogn. acc., τὸ βάπτισμα, Ac 19:4 (cf. Mk 10:38, supr.); pass., to be baptized, receive baptism: Mt 3:13, 14, 16, Mk 16:16, Lk 3:7, 12, 21 7:29 (τ. βάπτισμα) ib. 30, Ac 2:41 8:12, 13, 36 9:18 10:47 16:15, 33 18:8; mid., 22:16 (M, Pr., 163);
(b) with prepositions: ἐν, of the element, Mt 3:6, 11, Mk 1:4, 5, 8, Lk 3:16, Jo 1:26, 31, 33 3:23, Ac 1:5 2:38 10:48 11:16, I Co 10:2; εἰς, of the element, purpose or result (Lft., Notes, 155), Mt 3:11 28:19, Mk 1:9, Ac 8:16 19:3, 5, Ro 6:3, I Co 1:13, 15 10:2 12:13, Ga 3:27; c. dat., ὕδατι, Lk 3:16, Ac 1:5 11:16; ὑπὲρ τῶν νεκρῶν, perh. to fulfil the wish of a dead friend, I Co 15:29 (v. ICC, in l.; cf. DB, i, 238 ff.; DCG, i, 169a; ii, 605b; Cremer, 126).†

Abbott-Smith References

Liddell-Scott-Jones

βαπτίζω-ίζω,

dip, plunge, ξίφος εἰς σφαγήν [Refs 1st c.AD+]:—passive, of a trephine, [Refs 1st c.AD+] — in passive, to be drowned, [Refs 1st c.AD+]; of ships, sink or disable them, [Refs 2nd c.BC+]; ἐβάπτισαν τὴν πόλιν flooded the city, metaphorically, of the crowds who flocked into Jerusalem at the time of the siege, [βαπτίζωισμένος 2nd c.AD: Archigenes Medicus and 2nd-1st c.BC: Posidonius Historicus cited in 6th c.AD: Aëtius Medicus 6.3 ">Refs 5th c.BC+]:—passive, ὡς ἐκ τοῦ βεβαπτίζωίσθαι ἀναπνέουσι [Refs 5th c.BC+]; to be drenched, [βαπτίζωισμένοι ">Refs 4th c.BC+]soaked in wine, [Refs 5th c.BC+]; ὀφλήμασι βεβ. over head and ears in debt, [Refs 1st c.AD+]; γνοὺς βαπτίζωιζόμενον τὸ μειράκιον seeing that he was getting into deep water, [βαπτίζωισμένος καταδύεται 3rd c.AD(?): Achilles Tatius Astronomus 6.19; ψυχή βεβαπτίζωισμένη λύπῃ 4th c.AD: Libanius Sophista “Orationes” 64.115. ">Refs 5th c.BC+]

__2 draw wine by dipping the cup in the bowl, [Refs 4th c.BC+]
__3 baptize, τινά [NT]:—passive, βαπτίζωισθήτω ἕκαστος εἰς ἄφεσιν ἁμαρτιῶν [NT]:—middle, dip oneself, [LXX]; get oneself baptized, [NT]:—passive, perform ablutions, [NT]

_{LSJ Scripture Refs: Mark.1.4 ☩ Matt.3.11 ☩ Acts.2.38 ☩ Rom.6.3 ☩ Acts.22.16 ☩ 1Cor.10.2 ☩ Luke.11.38}