Wasuregusa shigereru yado o kite mireba omoi noki yori ouru narikeri - Kinyo Wakashu(English Translation & Meaning)

忘れ草しげれる宿を来て見れば
思ひのきより生ふるなりけり

Roma-ji: Wasuregusa shigereru yado o kite mireba omoi noki yori ouru narikeri
English Translation: Forgetting-grass
grows thick about your dwelling;
when I come to look,
from the eaves where love withdrew
it springs and spreads, I find
Meaning: When I came to see your house overgrown with forgetting-grass, I found it was sprouting from the eaves, from the place where your love for me withdrew.
Commentary: Book Eight Love Poems II 439

Coming to the house overgrown with forgetting-grass, the poet finds that the grass grows from the eaves, from where the beloved's love has withdrawn from him. In the thick growth of the grass said to make one forget, he sees that the other's heart has left him, and expresses it wittily through the pun on noki, eaves, and noki, withdrawal.
The author, Toshiyori, is Minamoto no Toshiyori. A son of the Major Counselor Minamoto no Tsunenobu, he compiled this anthology at the command of Retired Emperor Shirakawa.

First line, 'wasuregusa', is another name for the daylily, said to make one forget sorrow when worn.
Second line, 'shigereru yado o', means the house where it grows thick, using ru, the attributive of the stative ri.
Third line, 'kite mireba', means when I came and looked.
Fourth line, 'omoi noki yori', seems to be a pivot word in which noki means both the eaves of the house and the withdrawing of love, left in kana.
Final line, 'ouru narikeri', means it was growing, the assertive nari with the exclamatory keri expressing realization.
Author: Minamoto no Toshiyori
Source: Kinyo Wakashu
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