Word: upset
Part of speech: Noun
Syllables: up
set
Definition: The dangerous situation where the flight attitude or airspeed of an aircraft is outside the designed bounds of operation, possibly resulting in loss of control.
Morphemes:
Affix: up-
Language: en
PoS: Prefix
Meaning: Used to indicate higher position or direction, literally or figuratively.
Affix: set
Language: en
PoS: Verb
Meaning: Of a heavenly body, to disappear below the horizon of a planet, etc, as the latter rotates.