parabola
1579, from Gk. parabole "parabola, application" (see parable),
so called by Apollonius of Perga c.210 B.C.E.
because it is produced by "application" of a given area
to a given straight line. It had a different sense in
Pythagorean geometry.
ttp://www.etymonline.com/index.php?term=parabola

parable
c.1325, "saying or story in which something is expressed
in terms of something else," from O.Fr. parable,
from L. parabola "comparison," from Gk. parabole "a comparison,
parable," lit. "a throwing beside,"
from para- "alongside" + bole "a throwing, casting,"
related to ballein "to throw." Replaced O.E. bispell.
In V.L. parabola took on the meaning "word,"
hence It. parlare, Fr. parler "to speak."
ttp://www.etymonline.com/index.php?term=parable