Compounds of 先に

• 先に
  (adv,n) before
  earlier than
  ahead
  beyond
  away
  previously
  recently
  (P)
• 先に
  (adv) formerly
• お先に
  (adv) (1) before
  previously
  (2) ahead
  (exp) (3) (abbr) (hon) Pardon me for leaving (before you)
• 我先に
  (adv) self first
  striving to be first
  scrambling for
• 矢先に
  (adv) just when one is ...
• 先に通す
  (exp) to let (a person) pass first
• 後悔先に立たず
  (exp) (id) It is no use crying over spilt milk
• お先に失礼します
  (exp) pardon me for leaving (first) (used when leaving a workplace while others remain)