also: かくご
noun
Linguistic term for the grammatical object, equivalent to 目的語. Used in grammar contexts.
See also: 目的語
「彼は本を読む」の「本を」は客語です。
In 'He reads a book,' 'a book' is the object.
noun
Logical term for what is asserted of the subject. Rare outside specialized logic contexts.
論理学では、命題の述語を客語と呼ぶことがある。
In logic, the predicate of a proposition is sometimes called 客語.
From 客 (guest, object) + 語 (word, language). The exact historical derivation is uncertain; the spelling is conventionally associated with the grammatical and logical meanings.