there is no prefix for everywhere
The prefix that fits the definition of backward or back is "re-".
The prefix that fits the definition of pseudoscience is "pseudo-", which means false or not genuine.
The prefix that means "backwards" is "retro-".
Para
The prefix "re-" can be added to both "charge" and "qualify" to form new words ("recharge" and "requalify").
omni
Omni refers to all or everywhere.
The prefix that fits the definition of backward or back is "re-".
The prefix that fits the definition of pseudoscience is "pseudo-", which means false or not genuine.
Pan
The prefix of all or everywhere is Omni. Omni is a Latin word and it is a combining form of the word all.
The prefix that means "backwards" is "retro-".
Para
geo
para
auto
olig