What does 如し mean?
如し is a Japanese auxiliary meaning “like; as if; the same as” in English. It is written as 如し in kanji, ごとし in hiragana, and gotoshi in romaji. This word is part of JLPT N3 vocabulary.
Example sentence
過ぎたるはなお及ばざるがごとし。
Too much of a good thing.