Word: undermine
Part of speech: Verb
Syllables: un
der
mine
Definition: To erode the base or foundation of something, e.g. by the action of water.
Morphemes:
Affix: under-
Language: en
PoS: Prefix
Meaning: Under (in any sense): insufficient, insufficiently, below what is correct; subordinate to; beneath or behind.
Affix: mine
Language: en
PoS: Verb
Meaning: To dig away, or otherwise remove, the substratum or foundation of; to lay a mine under; to sap; to undermine.