Answer
"omni" as in omniscient, meaning "all knowing"
Omni- Om"ni- [L. omnis all.]
A combining form denoting all, every, everywhere; as in omnipotent, all-powerful; omnipresent.
Source: Webster's Revised Unabridged Dictionary (1913)
Pan
there is no prefix for everywhere
The prefix would be Omni-. The prefix Omni- means all, with its roots in Latin, as the combining form of the word Omnis.
Omni refers to all or everywhere.
omni
The prefix "con-" means "with."
The prefix for inadequate is in-. The prefix in- means not.
The prefix is ap-. This prefix means to or toward.
The prefix intra- means inside or within.
The prefix is in. The prefix in- means not.
The prefix is in-. This prefix means not.
The prefix is in-. This prefix means not.