かつて

かつて, かってkatsute

adverb · adjectival

  1. once
  2. before
  3. formerly
  4. ever
  5. former
  6. ex-
  7. never yet
  8. never before

Study it in Yanamino

Data from JMdict, KANJIDIC2 (EDRDG), KanjiVG, CC-CEDICT and Make Me a Hanzi. Sources and licences