Main Entry: per·turb

Pronunciation: \pər-ˈtərb\

Function: transitive verb

Etymology: Middle English, from Middle French perturber, from Latin perturbare to throw into confusion, from per- + turbare to disturb — more at turbid

Date: 14th century

1 : to disturb greatly in mind : disquiet
2 : to throw into confusion : disorder
3 : to cause to experience a perturbation

synonyms see discompose

— per·turb·able \-ˈtər-bə-bəl\ adjective