Strong's #4213: posis (pronounced pos'-is)
from the alternate of 4095; a drinking (the act), i.e. (concretely) a draught:--drink.
Thayer's Greek Lexicon:
1) a drinking, drink
Part of Speech: noun feminine
Relation: from the alternate of G4095
Citing in TDNT: 6:145, 841
This word is used 3 times:
John 6:55: "my blood is drink indeed."
Romans 14:17: "not meat and drink; but righteousness, and peace,"
Colossians 2:16: "meat, or in drink, or in respect of a holy day,"