Word: depumping
Part of speech: Adjective
Syllables: dep
um
ping
Definition: That returns an atom (etc) to its ground state (or a less excited state)
Morphemes:
Affix: de-
Language: en
PoS: Prefix
Meaning: Intensifying; make more intense, stronger, or more marked; 
Etymology Compounds: Affix: dē-
Language: la
Decoded: de-
PoS: Prefix
Meaning: de-
Affix: pump
Language: en
PoS: Noun
Meaning: A device for moving or compressing a liquid or gas.
Affix: -ing
Language: en
PoS: Suffix
Meaning: Used to form uncountable nouns from verbs denoting the act of doing something, an action.