Quick Definition
purification
Strong's Definition
a cleansing (the act), i.e. (ceremonially) lustration
Derivation: from G48 (ἁγνίζω);
KJV Usage: purification
Thayer's Greek Lexicon
ἁγνισμός, (οῦ, ὁ, purification, lustration, (Dionysius Halicarnassus 3, 22, i., p. 469, 13; Plutarch, de defect. orac. 15): Act_21:26 (equivalent to πΕζΖψ, Num_6:5), Nazarite; see ἁγνίζω, 1.
Mounce Concise Greek Dictionary
ἁγνισμός hagnismos 1x
purification, abstinence, Act_21:26
Abbott-Smith Greek Lexicon
† ἁγνισμός , -οῦ , ὁ
( <ἁγνίζω ),
[in LXX : Num_6:5 ( H5145 ) Num_8:7 Num_19:17 ( H2403 ), etc.;]
purification : in ceremonial sense, Act_21:26
Moulton & Milligan — Vocabulary of the Greek NT
ἁγνισμός / ἁγνίζω [page 4]
The verb occurs in the Leyden Papyrus magica (ed. Dieterich) VI. 36 ποιήσας βόθρον ἐπὶ ἡγνισμένῳ τόπῳ . For the subst. see Syll 879 .18 f. (end of iii/B.C.) τὸν δὲ γυναικονόμον τὸν ὑπὸ τοῦ δήμου αἱρούμενον τοῖς ἁγνισμοῖς κτλ . Cf. Anz Subsidia , p. 283.
STEPBible — Tyndale Abridged Greek Lexicon
ἁγνισμός, -οῦ, ὁ (> ἁγνίζω),
[in LXX: Num.6:5 (נֵזֶר) 8:7 19:17 (חַטָּאָה), etc. ;]
purification: in ceremonial sense, Act.21:26 (LXX).†
(AS)