Lexical Definition

‎δεκατόω‎ dekatóō (dek-at-o'-o) to tithe G:V
from ‎δεκάτη‎

pay (receive) tithes.

Usage: 3 forms in 3 verses
Form Translated As     In Verse(s)
δεκατούντεσ receiving a tenth LXX.Neh.10.37
δεδεκάτωται has paid the tithe Heb.7.9
δεδεκάτωκεν he has collected a tenth Heb.7.6

Abbott-Smith

δεκατόω, -ῶ, = cl. -τεύω (< δεκάτη), [in LXX: Ne 10:37 (38) (עשׂר pi.) * ;]
to take tithe of: c. acc. pers., He 7:6; pass. to pay tithe: He 7:9.†

Abbott-Smith References

Book Refs
Nehemiah 10:37
Hebrews 7:6 · 7:9

Liddell-Scott-Jones

δεκατόω,

take tithe of a person, τινά [NT]:—passive, pay tithe, [Refs]

LSJ Scripture Refs: Heb.7.6