Lexical Definition

‎ἀφεδρών‎ aphedrṓn (af-ed-rone') latrine ^G:N-M
from a compound of ‎ἀπό‎ and the base of ‎ἑδραῖος‎

draught.

• a place of sitting apart, i.e. a privy

Abbott-Smith

*† ἀφεδρών, -ῶνος, ὁ (cf. ἄφεδρος, Le 12:5) = cl. ἄφοδος (MM, s.v.),
a privy, drain: Mt 15:17, Mk 7:19 (ὀχετόν, WH, mg.).†

Abbott-Smith References

Liddell-Scott-Jones

ἀφεδρών, ῶνος, ὁ,

(ἕδρα) privy, [NT]

_{LSJ Scripture Refs: Matt.15.17}