Imo to arishi toki wa aredomo wakarete wa koromode samuki mono ni zo arikeru

妹とありし時はあれども別れては
衣手寒きものにぞありける

Roma-ji: Imo to arishi toki wa aredomo wakarete wa koromode samuki mono ni zo arikeru
English Translation: When I was with my love
that was well enough,
but now we have parted
how cold my sleeves have grown,
that much I have learned
Meaning: While I was with my wife it did not trouble me, but now that we have parted, I find how cold my sleeves have become.
Commentary: Book Fifteen Poems of the Envoys to Silla 3591

Headnote continued from the preceding poem: "The envoys sent to Silla grieve at parting and exchange poems, express their sorrowful feelings on the sea route, and recite old poems suited to the places they pass"
The poem tells how, having parted from his wife, he notices a chill about his sleeves. The loneliness of losing the warmth of sleeping together is expressed by the cold he feels on his skin. The realization, learned only after parting, is conveyed by "keri" in the last line.
A left note reads "the above three poems were composed on the point of departure"; the three poems from 3591 to 3593 were made as the moment of setting out drew near. The author is not named.

First line, "imo to arishi": "shi" is the attributive of the past auxiliary "ki": when I was with my wife.
Second line, "toki wa aredomo": that time was well enough, but, leading on with the adversative "domo."
Third line, "wakarete wa": once we have parted, contrasting with the upper phrase.
Fourth line, "koromode samuki": "koromode" means sleeves; cold sleeves express the loneliness of having no one to sleep beside.
Fifth line, "mono ni zo arikeru": "zo" is a binding particle resolved by the attributive "keru" (kakarimusubi); "keri" voices the exclamation of a realization made for the first time.
Source: Manyoshu
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