復つ

The root wot- refers to “youth, original state”,[1][2] with traces found in 男 (woto₂ko₁)[1][3][4] and 乙女 (woto₂me₁).[1][5][6]

Possibly also cognate with 遠 (woti, “distant time”).

復つ (wotu) (kana をつ)

1. to return to an origin or original state, to become young again, to be rejuvenated, to be restored to a youthful state
   • c. 759, Man’yōshū, book 5, poem 847:
     ,[7] text here

     和我佐可理伊多久久多知奴久毛爾得夫久須利波武等母麻多遠知米也母

     waga sakari itaku kutatinu kumo ni to₂bu kusuri pamu to₂ mo mata wotime₂ ya mo

     (please add an English translation of this usage example)

   • c. 759, Man’yōshū, book 6, poem 1034:
     ,[8] text here

     從古人之言來流老人之變若云水曾名爾負瀧之瀨

     inisipe₁ yu pi₁to₂ no₂ ipi₁ke₁ru oipi₁to₂ no₂ wotu to₂ ipu mi₁du so₂ na ni opu taki₁ no₂ se

     (please add an English translation of this usage example)

2. to be reborn
   • c. 759, Man’yōshū, book 4, poem 650:
     ,[7] text here

     吾妹兒者常世國爾住家良思昔見從變若益爾家利

     wagi₁moko₁ pa to₂ko₂yo₂ no₂ kuni ni sumi₁ke₁rasi mukasi mi₁si yo₁ri wotimasinike₁ri

     (please add an English translation of this usage example)

• Japanese: 復つ (otsu)