fluctuate
UK[ˈflʌktʃueɪt]US[ˈflʌktʃueɪt]
v
to change frequently in size, amount, quality, etc., especially from one extreme to another.
v
to move up and down in an unsteady way.
Morpheme Breakdown
fluctu
ate
fluctu
wave
ate
verb suffix
Etymology
the word 'fluctuate' originates from the latin verb 'fluctuare', which means 'to undulate like a wave'. this verb itself is derived from 'fluctus', the noun for 'wave', which comes from the verb 'fluere', meaning 'to flow'. the semantic journey is clear and logical: from the core concept of flowing liquid, to the formation of waves, and finally to the modern abstract sense of moving or changing in an irregular, wave-like pattern. the suffix '-ate' consistently marks it as a verb describing this action.
Analysis
Structure: fluctu (wave) + ate (verb suffix)
fluctu is from latin 'fluctus' meaning 'a wave'. ate is a latin-derived suffix used to form verbs meaning 'to act upon' or 'to become'.
Examples
vegetable prices fluctuate according to the season.
his feelings about the decision continued to fluctuate between excitement and anxiety.
the patient's temperature has been fluctuating all day.