Quick Definition
a crumb
Strong's Definition
a little bit or morsel
Derivation: diminutive from a derivative of the base of G5567 (ψάλλω) (meaning a crumb);
KJV Usage: crumb
Thayer's Greek Lexicon
ψιχίον, ψιχιου, τό (diminutive of ψίξ, ψιχος, ἡ, a morsel), a little morsel, a crumb (of bread or meat): Mat_15:27; Mar_7:28; Luk_16:21 (T WH omit; L Tr brackets τῶν ψιχίων). (Not found in Greek authors (cf. Winer's Grammar, 24; 96 (91)).)
Mounce Concise Greek Dictionary
ψιχίον psichion 2x
a morsel, crumb, bit, Mat_15:27 ; Mar_7:28
Abbott-Smith Greek Lexicon
*† ψιχίον , -ου , τό ,
dimin. of ψίξ ,
a crumb: Mat_15:27 , Mar_7:28 .†
Moulton & Milligan — Vocabulary of the Greek NT
ψιχίον [page 698]
a crumb (Mat. 15:27, Mar. 7:28) is not found in Grk. auth., according to Grimm : cf. MGr ψίχα .
Liddell-Scott — Intermediate Greek Lexicon
ψιχίον ψι_χίον, ου, τό, [Etym: Dim. of ψίξ] "a crumb of bread", NTest.
STEPBible — Tyndale Abridged Greek Lexicon
ψιχίον, -ου, τό
dimin. of ψίξ,
a crumb: Mat.15:27, Mrk.7:28.†
(AS)