Rare linguistic term for a word borrowed from another language. In everyday usage, 外来語 is far more common.
See also: 外来語
The term 伝来語 can refer to loanwords in linguistics, but it is hardly used in everyday language.
Compound of 伝来 (denrai, 'transmission, introduction from abroad') and 語 (go, 'word, language'). The exact origin of the term is uncertain, but it follows a common pattern for linguistic terminology.