https://www.space.com/mars-helicopter-ingenuity-first-flight-photo

helicopter = *{wa’ vo’wI’ muD [Do] Duj} – on the model of {wa’ rutlh qam Do Duj } “unicycle”?

IIRC Qov (who is a pilot IRL) once suggested *{vo'wI'} for propeller from {vo’} “propel”.

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Voragh
Ca'Non Master of the Klingons