Man pages matching name ypinit in section 8:

ypinit.8.ja	debian 10 / manpages-ja
ypinit.8.en	debian 10 / nis
ypinit.8.ja	debian 11 / manpages-ja
ypinit.8.en	debian 11 / ypserv
ypinit.8.ja	debian 12 / manpages-ja
ypinit.8.en	debian 12 / ypserv