expression, suru verb (special)
make the same; have the same ...; be of the same ...
Archaic or literary expression equivalent to 同じくする. Used in the pattern ...を同じゅうする to mean 'to make ... the same' or 'to share the same ...'. Rare in modern Japanese.
See also: 同じくする
彼らは志を同じゅうして行動した。
They acted with the same purpose.
古
In classical texts, it is used like 'to share the same fate'.