shudder (v.)youdaoicibaDictYouDict
early 14c., possibly from Middle Dutch schuderen "to shudder," or Middle Low German schoderen, both frequentative forms from Proto-Germanic *skuth- "to shake." Related: Shuddered; shuddering.
shudder (n.)youdaoicibaDictYouDict
c. 1600, from shudder (v.).