Retrograde \Re"tro*grade\, v. i. [imp. & p. p. Retrograded; p. pr. & vb. n. Retrograding.]

[L. retrogradare, retrogradi: cf. F. r['e]trograder.]

1. To go in a retrograde direction; to move, or appear to move, backward, as a planet. [1913 Webster]

2. Hence, to decline from a better to a worse condition, as in morals or intelligence. [1913 Webster]

Source: The Collaborative International Dictionary of English v.0.48
 

Retrograde \Re"tro*grade\, v. i. [imp. & p. p. Retrograded; p. pr. & vb. n. Retrograding.]

[L. retrogradare, retrogradi: cf. F. r['e]trograder.]

1. To go in a retrograde direction; to move, or appear to move, backward, as a planet.

2. Hence, to decline from a better to a worse condition, as in morals or intelligence.

Source: Webster's Revised Unabridged Dictionary (1913)