What does 古来 mean?
古来 is a Japanese adverb meaning “since ancient times, traditionally” in English. It is written as 古来 in kanji, こらい in hiragana, and korai in romaji. This word is part of JLPT N1 vocabulary.
Example sentence
彼は古来まれな芸術家だ。
He is as great an artist as lived.