everyone. I am currently writing a paper on sentence final suffixes in Japanese especially those used in conversation. I encounter a problem as to what is the origin of -っけ (eg. 名前は何だっけ?) . Is it connected to the verb 来る?

1 Answer 1


Any monolingual dictionary would instantly answer your question. See here for example:


The sentence-ending particle 「け」 as in 「~~だっけ/~~たっけ」 comes from the Classical auxiliary verb 「けり」, which is basically used for expressing a feeling of reminiscence and/or exclamation regarding a past event.

It has absolutely nothing to do with 「来{く}る」.

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    FWIW, classical けり may indeed be related to 来る. Per Shogakukan's 国語大辞典: 【回想の助動詞「き」と「有り」、または「来(き)」と「有り」の結合したもの】 Notably, reflective き has no 連用形, and the き form is the 終止形, so presumably it could never compound with another verb like this -- leaving the き from the 連用形 for 来る as the only grammatically plausible derivation. Jan 6, 2018 at 7:29

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