An Etymological Dictionary of Astronomy and Astrophysics

1. To move along, carried by or as by the wind.
   

2. To produce or emit a current of air, as with the mouth or a bellows.
   

3. Of a horn, trumpet, etc.) to give out sound.
   

4. To make a blowing sound; whistle (Dictionary.com).

Etymology (EN): M.E., from O.E. blawan “blow, breathe, make an air current; kindle; inflate; sound a wind instrument;” cf. O.H.G. blaen, Ger. blähen; from PIE *bhle- “to swell, blow up.”

Etymology (PE): Damidan, from Mid.Pers. damidan “to blow, breathe;” dam “breath, breath of an owen; bellows; smoke; air,” also “moment, time;” Av. dāδmainya- “blowing up;” cf.
Skt. dahm- “to blow,” dhámati “blows;” Gk. themeros “austere, dark-looking;” Lith. dumti “to blow;” PIE dhem-/dhemə- “to smoke, to blow.”