/ ˈjəʊdl; NAmE ˈjoʊdl/ verb , noun
■ verb
( -ll- , NAmE -l- ) [ v , vn ] to sing or call in the traditional Swiss way, changing your voice frequently between its normal level and a very high level
■ noun
a song or musical call in which sb yodels
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WORD ORIGIN
early 19th cent.: from German jodeln .