Webster's Revised Unabridged Dictionary · 1913

Evection

Evection

[Latin evectio a going up, from evehere to carry out; e out + vehere to carry: compare F évection.]

1.
The act of carrying up or away; exaltation. [Obsolete] — Bp. Pearson
2.
(a) (Astronomy) An inequality of the moon's motion in its orbit, due to the attraction of the sun, by which the equation of the center is diminished at the syzygies, and increased at the quadratures by about 1° 20′.
(b)
(Astronomy) The libration of the moon. — Whewell