copula; connective
Linguistics term for words that link subject and predicate (copula) or connect clauses/phrases (connective). In Japanese, often refers to だ, です, である, or conjunctions.
Japanese 'da' and 'desu' are a type of copula.
連結詞には、コピュラと接続詞の両方の意味がある。
The term 連結詞 can mean both copula and connective.
Compound of 連結 (link, connect) and 詞 (word, part of speech). The exact historical derivation is uncertain; it is a technical term used in Japanese linguistics.