Word: demoter
Part of speech: Noun
Syllables: de
mo
ter
Definition: One who demotes.
Morphemes:
Affix: de-
Language: en
Meaning: down
Etymology Compounds: Affix: dē-
Language: la
Decoded: de-
PoS: Prefix
Meaning: de-
Affix: promote
Language: en
Meaning: advance in rank/status 
Etymology Compounds: Affix: prōmōtus
Language: la
Decoded: promotus
PoS: Participle
Meaning: propelled, advanced
Affix: -er
Language: en
PoS: Suffix
Meaning: One who enjoys.
Etymology Compounds: Affix: -aris
Language: la
Decoded: -aris
PoS: Suffix
Meaning: Used to form an adjective, usually from a noun, indicating a relationship or a pertaining to.