FROM STRONG’S GREEK DICTIONARY (1890)

Strong’s Greek Dictionary (1890) — public domain, printed whole.

poterion ποτήριον — pot-ay'-ree-on — neuter of a derivative of the alternate of 4095; a drinking-vessel; by extension, the contents thereof, i.e. a cupful (draught); figuratively, a lot or fate:--cup.

see GREEK for 4095