noun
antique vessel; antique utensil; antique
Refers to old, often valuable, vessels or utensils, especially those with historical or artistic significance. More specific than a general antique; typically used for items like pots, jars, or tools.
この博物館には貴重な古器が展示されている。
This museum displays valuable antique vessels.
彼は古器の収集が趣味だ。
Collecting antique utensils is his hobby.
Composed of 古 (old) and 器 (vessel, utensil). The exact historical derivation is uncertain, but the compound straightforwardly means 'old vessel'.