Tsukihi eri aiteshi areba wakaremaku oshiku aru kimi wa asu sae mo ga mo

月日えり逢ひてしあれば別れまく
惜しくある君は明日さへもがも

Roma-ji: Tsukihi eri aiteshi areba wakaremaku oshiku aru kimi wa asu sae mo ga mo
English Translation: Choosing month and day,
we have met at last, and so
parting from you now
is a sorrow—how I wish
you'd stay even through tomorrow!
Meaning: Since we have met at last on the chosen month and day, I grieve to part from you—if only you could stay even tomorrow.
Commentary: Book Ten Autumn Miscellaneous Poems 2066

Headnote continued from the preceding poem: "Tanabata"
This poem, in the Weaver's voice, wishes that her beloved, from whom parting is so painful, might stay through tomorrow, since they have finally met on the chosen day. Under the decree that they may meet only on the seventh day of the Seventh Month, it shows a wish to be together even one day longer. Like 2057, in which the Herdsman wished the night would last seven nights, it wishes for the meeting to be prolonged, so the same wish is sung from both stars.

The first line, "tsukihi eri," choosing the month and day, refers to the appointed seventh day of the Seventh Month.
In the second line, "aiteshi areba," "teshi" combines completion and past: since we have met.
The third line, "wakaremaku," is the nominalized form of "wakaremu": the parting.
The fourth line, "you who are dear to part from," is hypermetric.
In the last line, "asu sae mo ga mo," "sae" expresses addition and "mo ga mo" is a particle of wishing, closing with the wish that he stay even tomorrow.
Source: Manyoshu
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