Word: underpinning
Part of speech: Noun
Syllables: un
der
pi
nning
Definition: A support or foundation, especially as a structure of masonry that supports a wall.
Morphemes:
Affix: under-
Language: en
PoS: Prefix
Meaning: Under (in any sense): insufficient, insufficiently, below what is correct; subordinate to; beneath or behind.
Affix: pin
Language: en
PoS: Verb
Meaning: To enclose; to confine; to pen; to pound.
Affix: -ing
Language: en
PoS: Suffix
Meaning: Used to form uncountable nouns from verbs denoting the act of doing something, an action.