Lexical Definition

‎κατασφάττω‎ kataspháttō (kat-as-fat'-to) to slaughter ^G:V
from ‎κατά‎ and ‎σφάζω‎

slay.

• to kill down, i.e. slaughter

Abbott-Smith

κατα-σφάζω, [in LXX: Za 11:5 (הרג), Ez 16:40 (בּתק pi.), II Mac8;]
to kill off, slay: c. acc., Lk 19:27.†

Abbott-Smith References

Liddell-Scott-Jones

κατασφάζω,

later κατασυν-σφάττω [Refs 2nd c.AD+]: future -ξω [LXX]:—slaughter, murder, [NT+5th c.BC+]: frequently in aorist passive κατεσφάγην [ᾰ] [Refs 5th c.BC+]

_{LSJ Scripture Refs: LXX.Ezek.16.40 ☩ Luke.19.27}