Lexical Definition

‎πόσις‎ pósis (pos'-is) drink G:N-F
from the alternate of ‎πίνω‎

drink.

Usage: 3 forms in 5 verses
Form Translated As     In Verse(s)
πόσισ drink John.6.55
drinking Rom.14.17
πόσιν drink LXX.Ezra.3.7
your drink LXX.Dan.1.10
πόσει drink Col.2.16

Abbott-Smith

πόσις, -εως, ἡ (< πίνω), [in LXX: Da, LXX TH 1:10 (מִשְׁתֶּה)*;]
1. prop., drinking: Ro 14:17, Col 2:16 (v. Lft.; ICC, in l.).
2. = πόμα, drink: Jo 6:55 (cf. βρῶσις).†

Abbott-Smith References

Book Refs
Daniel 1:10
John 6:55
Romans 14:17
Colossians 2:16

Liddell-Scott-Jones

πόσις, ιος,

Attic dialect εως, ; dative πόσει, Ionic dialect πόσι [Refs 5th c.BC+]: (πίνω):— drinking, drink, beverage, πόσιος καὶ ἐδητύος ἐζ ἔρον ἕντο [Refs 8th c.BC+]; carousal, [Refs 7th c.BC+]; συγγίνεσθαι ἐς πόσιν to meet for a carousal, [Refs 5th c.BC+]over their cups, [Refs 5th c.BC+]

__2 draught, αἷμα πίεται τρίτην πόσιν [Refs 5th c.BC+]