Orion gives here two etymologies. The first one is a derivational etymology, starting from a monosyllabic verb *σῶ, which is the alleged etymon of σείω. From this form is derived in agreement with Philoxenus' method, the future, then a verbal noun *σῶλος which, through a pathos (shortening of the vowel) yields the required lemma. Then Orion adds a second, compositional etymology. This second etymology, also found in the bt Scholia to the Iliad, is probably not by Philoxenus, who rejected compositional etymologies except for real compounds. It is not mentioned in the Gudianum, nor in Ps.-Zonaras (see Parallels), and only the Etym. Magnum has it, with the same formulation as Orion's main manuscript (the Etym. Magnum correctly has the ἤ which was dropped in Orion, showing that this is a different etymology). It must be an addition by a copyist, whose copy was the source of both our version of Orion and that used by the compiler of the Etym. Magnum. The Gudianum relies on a different version of Orion, which apparently did not have this addition. See σόλος / σεύω + ὅλος