G1571 — ἐκκαθαίρω (ekkathairo)¶

Core Data¶

Strong's: G1571
Original: ἐκκαθαίρω
Transliteration: ekkathairo
Pronunciation: ek-kath-ah'-ee-ro
Part of Speech: Verb
Root: ἐκ (ek, G1537 "out of") + καθαίρω (kathairo, G2508 "to cleanse/prune") — intensified compound: to cleanse out thoroughly
Occurrences: 2 tokens in 2 unique verses across 2 books
First Occurrence: 1 Cor 5:7 — "Purge out therefore the old leaven, that ye may be a new lump, as ye are unleavened."
Hapax Legomenon: No

Lexicon Definition¶

From G1537 (ek) and G2508 (kathairo); to cleanse thoroughly: — purge (out).

Morphological Attestation¶

Reference	Form	Parsing
1 Cor 5:7	ἐκκαθάρατε	Aorist Active Imperative 2nd Plural
2 Tim 2:21	ἐκκαθάρῃ	Aorist Active Subjunctive 3rd Singular

Both occurrences are aorist active, indicating decisive, completed action rather than ongoing process. The imperative in 1 Cor 5:7 commands a community act; the subjunctive in 2 Tim 2:21 introduces a conditional individual act.

Louw-Nida Semantic Domain¶

Domain 79: Features of Objects
Subdomain 79.010: Clean, Dirty
Glosses: to clean out, to clean away
Other words in subdomain: ἀκαθαρσία (G167), διακαθαίρω (G1245a), διακαθαρίζω (G1245), καθαίρω (G2508), καθαρίζω (G2511), καθαρός (G2513), μολύνω (G3435), περικάθαρμα (G4027), περίψημα (G4067), ῥυπαρός (G4508)

Domain Neighbors (79.010 — Clean, Dirty)¶

Strong's	Lemma	Total Verses	Primary KJV Translation
G167	ἀκαθαρσία	10	uncleanness
G1245	διακαθαρίζω	2	thoroughly purge
G2508	καθαίρω	2	purgeth, purged
G2511	καθαρίζω	29	clean, cleanse
G2513	καθαρός	24	clean, pure
G3435	μολύνω	4	defiled
G4027	περικάθαρμα	1	filth
G4067	περίψημα	1	offscouring
G4508	ῥυπαρός	1	vile
G4509	ῥύπος	1	filth

Translation Distribution (KJV)¶

Translation	Count	%
Purge out	1	50%
purge	1	50%

Distribution by Book¶

Book	Count	Per 100 Verses
2 Timothy	1	1.2
1 Corinthians	1	0.2

Confined to Pauline epistles. Both occurrences address the internal condition of believing communities or individuals rather than ritual or ceremonial contexts.

Semantic Categories¶

1. Corporate Purging — Removing Moral Corruption from the Community¶

1 Cor 5:7 — "Purge out therefore the old leaven, that ye may be a new lump, as ye are unleavened. For even Christ our passover is sacrificed for us."

The church at Corinth is commanded to expel corrupting influence (the "old leaven" — a member practicing sexual immorality, per 5:1). The ek- prefix reinforces thoroughness: not merely cleanse but cleanse out entirely. The Passover metaphor ties the purging to Israel's removal of all leaven before the feast (Exod 12:15).

2. Individual Self-Purging — Separating from Dishonorable Associations¶

2 Tim 2:21 — "If a man therefore purge himself from these, he shall be a vessel unto honour, sanctified, and meet for the master's use, and prepared unto every good work."

Here the subject purges himself. The "these" refers to the dishonorable vessels / false teachers of 2:17–20. The result is fitness for the Master's use — a vessel set apart (sanctified) for honorable service.

Common Collocations¶

Word	Strong's	Co-occurrences	Typical Pattern
ζύμη (zyme)	G2219	1x	"Purge out the old leaven" — leaven as the object purged
παλαιός (palaios)	G3820	1x	"old leaven" — the corrupting element described as old/former
σκεῦος (skeuos)	G4632	1x	"vessel unto honour" — the purged person as a vessel
ἁγιάζω (hagiazo)	G37	1x	"sanctified" — the result of self-purging
πάσχα (pascha)	G3957	1x	"Christ our passover" — Passover context for corporate purging
ἄζυμος (azymos)	G106	1x	"unleavened" — the desired state after purging
Χριστός (Christos)	G5547	1x	"Christ our passover" — christological ground for purging
τιμή (time)	G5092	1x	"vessel unto honour" — the honor that follows purging
εὔχρηστος (euchrestos)	G2173	1x	"meet for the master's use" — practical readiness
δεσπότης (despotes)	G1203	1x	"the master's use" — the master whom the vessel serves

With only 2 verses, all collocations are 1x. The dominant metaphorical domains are leaven-removal (1 Cor 5) and vessel-purification (2 Tim 2).

Word Family / Cognates (kathar- root)¶

G2508 καθαίρω (kathairo) — base verb: to cleanse, prune (2v — Jn 15:2, Heb 10:2 v.l.)
G2511 καθαρίζω (katharizo) — to cleanse, make clean, purify (29v) — the general cleansing verb
G2512 καθαρισμός (katharismos) — cleansing, purification (7v)
G2513 καθαρός (katharos) — clean, pure (24v) — the adjective
G2514 καθαρότης (katharotes) — cleanness, purity (1v — Heb 9:13)
G1245 διακαθαρίζω (diakatharizo) — to cleanse through and through (2v — Matt 3:12, Lk 3:17) — parallel intensified compound using δια- prefix

Easily Confused Words¶

Word	Strong's	Shared Translation	Key Difference
καθαίρω (kathairo)	G2508	"purge"	Base form without ek- prefix; used for pruning branches (Jn 15:2); ekkathairo adds thoroughness and the sense of removal from a space
διακαθαρίζω (diakatharizo)	G1245	"thoroughly purge"	Uses dia- ("through") prefix; applied to winnowing the threshing floor (Matt 3:12); ekkathairo uses ek- ("out of") emphasizing expulsion
καθαρίζω (katharizo)	G2511	"purge" (2x), "cleanse"	The general NT cleansing verb (29v); ekkathairo is the rare, intensified form for decisive removal
כָּפַר (kaphar)	H3722	"purge" (OT)	Hebrew: to cover/atone; translated "purge" 9x in KJV for atonement-purging of sin from the sanctuary
טָהֵר (taher)	H2891	"purge" (OT)	Hebrew: to be bright/clean; translated "purge" 5x in KJV for ritual cleansing

Hebrew Source¶

No Hebrew sources found via LXX mapping. G1571 is a NT-only compound formation not attested in the LXX.