“I know I shouldn't 'jumptoconclusions,' butyouhavetoadmitthatheseemsdepressedagain.”
OriginOfIdiom.
Thisidiomhasbeenusedsincearound 1700.
Thisidiomusestheword "jump" inthesenseof 'toactinanimpulsiveway' asinto 'jumptosomeone's defense' or 'toomitorskipoversomethingandpassto a furtherpointorstagein a process.