1835-45; <
Greek autoschedíasma, derivative, with -(
s)ma resultative noun suffix, of
autoschediázein to extemporize, verbal derivative of
autoschédios hand-to-hand, offhand, improvised, equivalent to
auto- auto-1 +
schédios near, casual, offhand, derivative of
schedón (adv.) near, close by, akin to
échein to hold, possess
