Ikahoro no yasaka no ide ni tatsu noji no arawaro made mo sane o saneteba

伊香保ろのやさかのゐでに立つ虹の
現はろまでもさ寝をさ寝てば

Roma-ji: Ikahoro no yasaka no ide ni tatsu noji no arawaro made mo sane o saneteba
English Translation: On Ikaho's slopes,
at the weir of Yasaka
a rainbow arches:
till our love is plain as that,
if only we could lie as one.
Meaning: Like the rainbow arching over the weir at Yasaka on Ikaho, if only we could sleep together till all the world could see.
Commentary: Book Fourteen Azuma Poems 3414

Headnote continued from the preceding poem: "Sōmon (Love Exchanges)"
Like the rainbow over the weir at Yasaka on Ikaho, the singer wants to lie with the beloved even until their love becomes known to all. A bold love that would rather fulfill its desire than fear others' eyes is expressed.
It is one of the Kōzuke poems. Reading "rainbow" as "noji" is eastern dialect, and this is said to be the only poem in the Man'yōshū about a rainbow.
The poet is unknown. The Azuma uta are thought to have been sung among the people of the eastern provinces, and they are marked by plain, open-hearted expression mixed with local dialect.

First line, "ikahoro no": Ikaho named, one of the Ikaho poems among the Kōzuke songs.
Second line, "yasaka no ide ni": "Yasaka" is read as a place name or as a high slope; "ide" is a weir that dams a river.
Third line, "tatsu noji no": "Rainbow" is read "noji" in eastern dialect. The first three lines form a preface leading to "arawaro."
Fourth line, "arawaro made mo": "Arawaro" is an eastern form of "arawaru," becoming known to others.
Final line, "sane o saneteba": "Sane o sane" means sleeping together again and again, and "teba" is suppositional, ending with lingering suggestion.
Source: Manyoshu
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