Word: underfire
Part of speech: Verb
Syllables: un
der
fire
Definition: To burn fuel at less than the desired level, thus not providing heat efficiently.
Morphemes:
Affix: under-
Language: en
PoS: Prefix
Meaning: Under (in any sense): insufficient, insufficiently, below what is correct; subordinate to; beneath or behind.
Affix: fire
Language: en
PoS: Verb
Meaning: To heat as with fire, but without setting on fire, as ceramic, metal objects, etc.