Both ΟΜΟ- (con-), ΟΜΟΙΟ- (homo- / homeo- pronounced: omoio-) and ΗΜΙ- (semi-, demi-) can signify the same thing, though "ΗΜΙ-" (semi-) has the degrading meaning of "half-". Just think what "semisexual" could mean...
A very good example for the right use of ΟΜΟΙΟ- is the word "homeopathetic" (ΟΜΟΙΟΠΑΘΗΤΙΚΟΣ, ΟΜΟΙΟΠΑΘΗΤΙΚΗ)
dodecahedron
The word "hyperactive" contains a Greek prefix that means over.
poly- eg:polygamy
The prefix in the word "monotonous" is "mono-," which means "single" or "one." This prefix indicates that something is the same or repetitive.
In the word atypical, the prefix a means not; atypical means not typical.
It is Greek and means 'same'.
The prefix "homo-", derived from Greek, means "same". "Homophone" means "same sound".
dodecahedron
Same as the Greek root "EU" it means good or well
the greek prefix para means beyond
The word "hyperactive" contains a Greek prefix that means over.
poly- eg:polygamy
The Greek prefix "geo" means Earth.
The prefix in the word "monotonous" is "mono-," which means "single" or "one." This prefix indicates that something is the same or repetitive.
In the word atypical, the prefix a means not; atypical means not typical.
The prefix iso- is derived from the Greek word isos. It means equal.
The prefix ap- mean to or toward. One word with this prefix is appetite.