Strong's Greek #712 - ἄριστον, ου, τό ariston (breakfast)

dinner.

Apparently neuter of a superlative from the same as arrhen; the best meal (or breakfast; perhaps from eri ("early")), i.e. Luncheon -- dinner.

see GREEK arrhen

Strong's 712: ἄριστον

ἄριστον, ἀρίστου, τό (from Homer down);

a. the first food, taken early in the morning before work, breakfast; dinner was called δεῖπνον. But the later Greeks called breakfast; τό ἀκράτισμα, and dinner ἄριστον i. e. δεῖπνον μεσηβρινον, Athen. 1, 9, 10, p. 11b.; and so in the N. T. Hence,

b. dinner: Luke 14:12 (ποιεῖν ἄριστον ἤ δεῖπνον, to which others are invited); Luke 11:38; Matthew 22:4 (ἑτοιμάζειν). (B. D. under the word ; Becker's Charicles, namely, vi. excurs. i. (English translation, p. 312f).)

Strong's Greek: 712. ἄριστον (ariston) — 3 Occurrences

Matthew 22:4 - N-NNS
GRK: Ἰδοὺ τὸ ἄριστόν μου ἡτοίμακα
NAS: I have prepared my dinner; my oxen
KJV: I have prepared my dinner: my oxen
INT: Behold the dinner of me I prepared

Luke 11:38 - N-GNS
GRK: πρὸ τοῦ ἀρίστου
NAS: ceremonially washed before the meal.
KJV: washed before dinner.
INT: before the dinner

Luke 14:12 - N-NNS
GRK: Ὅταν ποιῇς ἄριστον ἢ δεῖπνον
NAS: you give a luncheon or
KJV: When thou makest a dinner or a supper,
INT: When you make a dinner or a supper