云う[yuu] to say
云云[unnun] and so on
幾千と云う人[ikusentoiuhito] thousands of people

云為[uni] sayings and doings
云爾[unji] such as

塞爾維[serubia] Serbia
伯剌西爾[burajiru] Brazil
亜爾然丁[aruzenchin] Argentina
爾後[jigo] thereafter
爾来[jirai] since then

率爾[sotsuji] abrupt
天爾乎波[teniwoha] postpositions
爾今[jikon] from now on
爾余[jiyo] the others
徒爾[toji] uselessness