Note: Backside (one word) was formerly used of the rear part or side of any thing or place, but in such senses is now two words.
BACKSIGHT
Back"sight`, n. Etym: [Back, adv. + sight. ] (Surv.)
Defn: The reading of the leveling staff in its unchanged position when the leveling instrument has been taken to a new position; a sight directed backwards to a station previously occupied. Cf. Foresight, n., 3.
BACKSLIDE Back`slide", v. i. [imp. Backslid; p.p. Backslidden, Backslid; p. pr. & vb. n. Backsliding. ] Etym: [Back , adv.+ slide.]
Defn: To slide back; to fall away; esp. to abandon gradually the faith and practice of a religion that has been professed.
BACKSLIDER
Back"slid"er, n.
Defn: One who backslides.
BACKSLIDING
Back"slid"ing, a.
Defn: Slipping back; falling back into sin or error; sinning.
Turn, O backsliding children, saith the Lord. Jer. iii. 14.
BACKSLIDING
Back"slid"ing, n.