Word: underthigh
Part of speech: Noun
Syllables: un
der
thigh
Definition: The back upper portion of a pantleg or trouser leg.
Morphemes:
Affix: under
Language: en
PoS: Preposition
Meaning: Below the surface of.
Affix: thigh
Language: en
PoS: Noun
Meaning: The upper leg of a human, between the hip and the knee.