4 words for UUY 1–3 letters

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1 letter (2)

u y
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2 letters (1)

yu
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3 letters (1)

uyu
Poet’s word, with inverted comma, for the end of the day
?
E
?
E
?
N
Hint 1 meaning
The old plural of Eye.
Hint 2 anagram
ENE
Hint 3 another clue
AND STILL ___
32 +1