因故

yīngù
for some reason

CEDICT

for some reason

Wiktionary

因为某些原因

維基詞典

Entry Composition

=1 因 yīn old variant of 因 yīn
=1 因 yīn
  1. cause
  2. reason
  3. because
2 故 gù
  1. happening
  2. instance
  3. reason
  4. cause
  5. intentional
  6. former
  7. old
  8. friend
  9. therefore
  10. hence
  11. (of people) to die, dead