[ verb ] fall backwards and down
Used in print(Stephen Longstreet, Eagles Where I Walk....)
The things left unsaid they both felt deeply , and with a sigh they fell_back on the well stuffed pillows .
[ verb ] hang (back) or fall (behind) in movement, progress, development, etc.
Used in print(Booton Herndon, "From Custer to Korea, The 7th Cavalry"...)
The Koreans fell_back , but regrouped at the top of the hill and pinned down the cavalrymen with a screen of fire .