An Etymological Dictionary of Astronomy and Astrophysics

The act of extending research activities beyond its current or conventional limits to a wide section of the population for educational purposes.

Etymology (EN): → out; reach, M.E. rechen, O.E. ræcan “to extend, hold forth;” cf. O.Fris. reka, M.Du. reiken; cognate with Pers. râst, → right.

Etymology (PE): Borun-rasâni, from borun, → out, + rasâni verbal noun of rasândan “to carry, guide, send,” transitive of rasidan “to reach, arrive,” → access.
Hame-âmuzi, literally “teaching every body,” from hamé, → all; âmuzi, from âmuxtan “to teach; learn,” → teach.