Meaning extravagance. Thus Aeschines [sc. uses this word].[1] Or a)se/lgeia, [meaning] prostitution, impurity.
Defilement.
It is derived, so they say, from this reason. Selgê is a city of Pisidia, where the people used to live wickedly and have [sc. illicit] sex with one another. So by extension [we get the verb] a)selgai/nein.[2] And the ancients used to apply [the term] a)selge/s ["wanton"] not only to something intemperate, but also, on occasion, to something large. For they also call a wind a)selgh/s; and a "prodigiously horned goat" [a)selgo/kerws tra/gos], [meaning] a large one.[3] Or a)selgo/kerws ["wanton-horned"], [meaning] butting with the horns.
"They are prodigiously fat": Aristophanes says [this] in Wealth.[4] Meaning heavy.
"Being agitated and croaking with licentiousness, just as crows caw."[5] Meaning they are being awfully noisy.
Also [sc. attested is] a)selgh/s, in reference to a wind [and meaning one] blowing violently.
"There is born many a wanton [wind]" -- says Aelian in his [work] concerning various narrations; "the origin of this [is] deep glens and crevices, through which [the wind] is pushed and extends at its most boisterous."[6]