An Etymological Dictionary of Astronomy and Astrophysics

To propel something through the air in any way, especially by
swinging the arm and releasing the object from the hand; → ejecter.

Etymology (EN): M.E. throwen, thrawen, “to twist, turn writhe” (cf. O.S. thraian, M.Du. dræyen, Du. draaien, O.H.G. draen, Ger. drehen “to turn, twist”).

Etymology (PE): Andâxtan, andâz-, from Mid.Pers. handâxtan, handâz-; ultimately from Proto-Iranian *ham-tak-, from *ham- “together, with, same,” → syn- + *tak- “to run, to flow;” cf. Av. tak- “to run, to flow,” taciāp- “flowing water,” tacinti (3pl.pers.act.) “to flow,”
tacar- “course,” tacan “current, streaming;” Mod.Pers. tacidan, tâxtan, tâzidan “to run; to hasten; to assault,” tajan name of a river (initially “flowing, streaming, stream”), tâzi “swift (greyhound),” tak “running, rush,” from
Mid.Pers. tâz-, tâxtan “to flow, to cause to walk,” tc- “to flow, to walk,” tag “running, attack,” tâzig “swift, fast;”
Khotanese ttajs- “to flow, to walk;” Skt. tak- to rush, to hurry," takti “runs;” O.Ir. tech- “to flow;” Lith. teketi “to walk, to flow;” O.C.S. tešti “to walk, to hurry;” Tokharian B cake “river;” PIE base *tek^w- “to run; to flow.