Greek mythology actually did have a "centiclops" -- Argus Panoptes ("all eyes"), who had a hundred eyes all over his body. Hera assigned him to watch over Io, a nymph who had been turned into a cow, so that Zeus wouldn't come and shag her in secret. Argus was slain by Hermes (a Zeus loyalist); to mourn and honor him, Hera had his eyes transferred to the peacock's tail.

The real Greek for a hundred-eyed being would be something like "hekatonoptes", but Argus wasn't called that as far as I know.