Probably feminine of a presumed derivative of the alternate of ἔχω (G2192)
probably feminine of a presumed derivative of the alternate of G2192; properly, loitering (as a withholding of oneself from work) or leisure, i.e. (by implication) a "school" (as vacation from physical employment):—school.
Outline
freedom from labour
a place where there is leisure for anything, a school