retrograde

باللغة العربية: تراجع، حركة تراجعية، رجعي

1. A movement backwards or opposite to the intended or normal motion.
2. The apparent movement of a planet across the sky in the opposite direction from its ordinary movement.
3. One who opposes social reform, favouring the maintenance of the status quo; a conservative.
4. The reversal of a melody so that what is played first in the original melody is played last, and what is played last in the original melody is played first.

الجمع retrogrades