Variant of perturb
- to cause to be alarmed, agitated, or upset; disturb or trouble greatly
- to cause disorder or confusion in; unsettle
- Astron. to cause perturbations in (the orbit of a planet, moon, etc.)
Origin: ME perturben < MFr perturber < L perturbare < per-, intens. + turbare, to disturb: see turbid
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