Reflecting this, katsu is often written in hiragana as かつ, as a native Japanese word, rather than as カツ (from カツレツ, katsuretsu, "cutlet").
For at afspejle det skrives katsu ofte med hiragana som かつ som et oprindeligt japansk ord i stedet for med katakana som カツ (af カツレツ, katsuretsu, kotelet).