しまう

From root shim-, cognate with classical verb 締む (shimu, “to fasten, tighten”) and modern verb 閉まる (shimaru, “to be closed”) +‎ ふ (fu, auxiliary verb indicating repetition or ongoing action).

• (Tokyo) しまう (Heiban – )^[1]
• IPA^(key):

しまう • (shimau) ^{←しまふ (simafu)?}godan (stem しまい (shimai), past しまった (shimatta))

1. to close
2. to finish, do something completely
3. to put away, to put an end to
4. (auxiliary) after the conjunctive て (-te) form of a verb:
   1. is, or was (with conjugation), done completely
   2. happens, or happened, unexpectedly

      彼(かの)女(じょ)は大(おお)阪(さか)に行(い)ってしまいました。 ― Kanojo wa Ōsaka ni itte shimaimashita. ― She just (up and) went to Osaka.

   3. is done with difficulty
   4. happens, or is done with regret afterward; end up

      あなたは笑(わら)われてしまうでしょう。 ― anata wa warawarete shimau deshō. ― You will be laughed at (and you won't like it).

• Usually written in hiragana.
• The auxiliary use is always appended to the conjunctive (-te form) of a verb.
• てしまう (-te shimau) and でしまう (-de shimau) can be contracted to ちゃう (-chau) and ぢゃう (-jau). These two forms conjugate like godan verbs and are often used in casual speech.

  忘(わす)れちゃった！ ― wasurechatta! ― I forgot!

• There are also ちまう (-chimau) and ぢまう (-jimau), which sound old-fashioned.

  風船(ふうせん)が飛(と)んぢまった！ ― fūsen ga tonjimatta! ― The balloon blew away!

• Due to changes in spelling rules during the 20th century, the voiced versions ぢゃう (-jau) and ぢまう (-jimau) may be more commonly encountered as じゃう (-jau) and じまう (-jimau).

• しまい (shimai)
• ちまう (chimau)
• しまった (shimatta)
• しもうた (shimouta)

(The following entry is uncreated: 四孟.)