Rotary
/ˈroʊ.tə.ri/noun
Turning around a central point or axis.
Did you know?‘Rotary’ descends from the same Indo-European root that gave English words like ‘wheel’ and ‘roll,’ so the idea of rotation is one of humanity’s oldest motion-words.
Etymological Timeline
Proto-Indo-European
PIE
*ret-
“to run, roll, turn”
Latin
Latin
rotare
“to turn, revolve”
Late Latin
Latin
rotarius
“pertaining to a wheel or turning”
Middle English
English
rotarie
“turning; revolving”
Modern English
English
rotary
“turning around an axis”