Strong's G5518 · Greek

χοῖνιξ

choinix · khoy'-nix

of uncertain derivation; a choenix or certain dry measure

Scholarly Lexicons

Abbott-Smith Manual Greek Lexicon

 2 χοῖνιξ , -ικος, ἡ [in LXX: Ez 45:10, 11 ( בַּת ) * ;] a chænix , a dry measure of rather less than a quart: Re 6:6 (EV, measure ).† 

G. Abbott-Smith, A Manual Greek Lexicon of the New Testament (1922) — public domain