Tomo tomo to shitau namida no sou mizu wa ika naru iro ni miete yukuran - Gosen Wakashu(English Translation & Meaning)

ともともと慕ふ涙の添ふ水は
いかなる色に見えてゆくらん

Roma-ji: Tomo tomo to shitau namida no sou mizu wa ika naru iro ni miete yukuran
English Translation: "Together, together,"
the water swelled with tears
of longing for you—
I wonder in what color
it is seen as it flows on
Meaning: I wonder in what color the water swelled by tears of longing, crying "together, together," is seen as it flows away.
Commentary: Book Nineteen Parting Poems 1321

Headnote: "Reply."
The poet wonders in what color the water joined by tears of longing, crying "together, together," will be seen as it flows away. Taking up "tomo tomo to" and "shitaware" of the preceding poem, the poet imagines tears of longing joining a river's flow. Asking their color seems to draw on the convention that tears of deep grief run crimson.
It is the reply to the preceding poem.
The poet is anonymous and the name is not known. The text gives the poet as "yomibito mo," but it is treated here as anonymous.

The first line, "Tomo tomo to," seems to mean "together, together," taking up the fourth line of the preceding poem directly.
The second line, "shitau namida no," means "of tears of longing," taking up "shitaware" in the preceding poem's last line.
The third line, "sou mizu wa," means "the water those tears swell."
The fourth line, "ika naru iro ni," means "in what color," asking the depth of grief through the color of tears.
The last line, "miete yukuran," means "is it seen as it flows," with "ran" a questioning conjecture answering "ika naru" in the fourth line.
Author: Unknown Poet
Source: Gosen Wakashu
Prev Poem: Somukarenu matsu no chitose no hodo yori mo tomo tomo to dani shitaware zo seshi
Next Poem: Wakaruredo ai mo oshimanu momoshiki o mizaramu koto ya nani ka kanashiki