Some examples are PROfessional, PROpulsion, PROlogue, PROmise, PRO-African, Sorry I can't think of more.
The prefix for all three words is "pro-".
There is protect protest project
ProcrastinateProtectProfessorProfessProfessionalProactivePro-biotic
The prefix of "profusion" is "pro-," which means "forward" or "in favor of."
the prefix is pro-
The prefix for progress is "pro-."
The prefix for "produce" is "pro-".
The prefix for proponent is "pro-".
The prefix of "profit" is "pro-".
The prefix for "professional" is "pro-".
"Pro" is the prefix, "mont" is the root, and "ory" is the suffix.
Pro- means "forward or before.