兪 is a Chinese hanzi, listed here under the keyword “surname”. It is built from 亼 (to assemble. to gather together), 月 (moon) and 巜 (巜). It appears as a component in 4 other characters in this index.
On KumiJi Glyph Explorer, open the parts search and type “to assemble. to gather together” + “moon” + “巜”. 兪 is among the results, together with every other character containing the same shapes.
Open 兪 in the interactive kanji search
to expand every part down to its smallest pieces, add your own names and mnemonic stories,
or search for other characters by their parts.