和英辞書

ては

conj

undesirable assumption: if / indicates a reason for causing strong emotions such as refutation and impression / presupposition by the things already done: since

彼が来ないては、私たちは困るでしょう。

If he doesn't come, we will be in trouble.

意味（1）

undesirable assumption: if

朝(あさ)夕(ゆふ)の光(ひかり)失(うしな)ひては、いかでか世(よ)にながらふべからむ

Asa yū no hikari ushinaite wa, ika de ka yo ni nagarau bekaramuIf I lost the light of morning and evening, how can I live anymore?

意味（2）

indicates a reason for causing strong emotions such as refutation and impression

妹(いも)等安里之(とありし) 時(とき)者安礼杼毛(はあれども) 和可礼(わかれ)弖波(ては) 許呂母弖佐牟伎(ころもでさむき) 母能尓曽安里家流(ものにぞありける) [Man'yōgana]妹(いも)とありし 時(とき)はあれども 別(わか)れては 衣(ころも)手(で)寒(さむ)き ものにぞありける [Modern spelling]

→ imo to arishi toki wa are domo wakarete wa koromode samuki mono nizo arikeruThough I had been along with my love, since separated from her, alas my sleeves were cold.

意味（3）

presupposition by the things already done: since

c. 1332, Yoshida Kenkō, Tsurezuregusa

c. 1332, Yoshida Kenkō, Tsurezuregusa いでや、この世(よ)に生(う)まれては、願(ねが)はしかるべきことこそ多(おほ)かめれ。

Ideya, kono yo ni umarete wa, negawashikaru beki koto koso ōka mere.Now, since being born in the present world, there would be many desires to have.

意味（4）

two actions or effects repeated in pairs: whenever, and

late 9th century, Ise Monogatari

late 9th century, Ise Monogatari 起(お)きもせず 寝(ね)もせで夜(よる)を 明(あ)かしては 春(はる)のものとて ながめ暮(く)らしつ

Oki mo sezu ne mo se de yoru o akashite wa haru no mono tote nagame kurashi tsuSpent the nights without being awake nor sleeping, spent the days with looking at those [long rains] as the things of the spring.

意味（5）

proposal, euphemical imperative: what about, why not

その仕(し)事(ごと)、辞(や)めてはどうか。

Sono shigoto, yamete wa dōka.How about quit your job?

意味（6）

used at an action not to be confident or can not expect a good result

c. 960 CE – 965 CE, Taira no Sadafumi, Heichū Monogatari

c. 960 CE – 965 CE, Taira no Sadafumi, Heichū Monogatari え気(け)色(しき)ばみては言(い)はで

E keshikibamite wa iwadeHe couldn't say with displaying his affection clearly, and