An Etymological Dictionary of the German Language/Schoß
Schoß (1.), m., ‘‘shoot, sprout, sprig,’ from the equiv. MidHG. schoȥ (ȥȥ), n., and with the same meaning even OHG. scoȥ, n., and scoȥȥa, f.; allied to the root skū̆t, ‘to shoot.’ From the OHG. word with the LG. dental is derived Fr. écot, ‘stump of a tree.’ To this ModHG. Schößling, from MidHG. schüȥȥelinc, is allied.
Schoß (2.), ‘tax, scot,’ from MidHG. (MidG.) schoȥ, m., ‘tax, rent’; comp. Du. schot, AS. sčęot (E. scot), ‘tax, score.’ The great antiquity of the West Teut. cognates is attested by the Rom. loan-words, Ital. scotto, ‘score,’ Fr. écot, ‘score.’ The Teut. words are formed from the root skū̆t, ‘to shoot,’ which in AS. sceótan, ‘to shoot,’ has also the secondary meaning, ‘to contribute money.’
Schoß (3.), Schooß, m., ‘lap,’ from MidHG. schôȥ, m., f., and n., OHG. scôȥ, scôȥo, scôȥa, m. and f., ‘skirt of a garment, petticoat, lap’ (to this Lombard. scoss, ‘lap,’ is allied). Comp. Goth. skauts, m., ‘border, hem of a garment,’ OIc. skaut, n., ‘tuft, corner, end, skirt,’ AS. sčeát, ‘corner, wedge, bosom’ (whence AS. sčŷte, ‘cloth,’ E. sheet), Du. schoot; allied to the root skū̆t, ‘to shoot.’ It is uncertain whether the orig. sense was a descending or hanging part of the dress or a projecting corner of the land, or whether (as in the similar cases of Franse and Gehren) the skirt was so named from its resemblance to a missile?. See Schote (2).