Word: antiearth
Part of speech: Noun
Syllables: an
tie
arth
Definition: A hypothetical twin planet to earth, proposed by the Pythagoreans, which cannot be seen from earth.
Morphemes:
Affix: anti-
Language: en
PoS: Prefix
Meaning: Physically opposite: applied to mountain ranges.
Affix: earth
Language: en
PoS: Proper noun
Meaning: Proper noun~ alternative case form of Earth; Our planet, third out from the Sun.