REARWARD
rearward, rear(a)
(adjective) located in or toward the back or rear; “the chair’s rear legs”; “the rear door of the plane”; “on the rearward side”
rearward, reverse
(adjective) directed or moving toward the rear; “a rearward glance”; “a rearward movement”
back, backward, backwards, rearward, rearwards
(adverb) at or to or toward the back or rear; “he moved back”; “tripped when he stepped backward”; “she looked rearward out the window of the car”
rearward
(noun) direction toward the rear; “his outfit marched to the rearward of the tank divisions”
Source: WordNet® 3.1
Etymology
Noun
rearward (plural rearwards)
The part that comes last or is situated in the rear; conclusion, wind-up.
The last troop; the rear of an army; a rear guard.
Adjective
rearward (comparative more rearward, superlative most rearward)
Toward the back or rear of something.
Adverb
rearward
Toward the back or rear of something.
Source: Wiktionary
Rear"ward`, n. Etym: [Rear + ward.]
Definition: The last troop; the rear of an army; a rear guard. Also used
figuratively. Shak.
Rear"ward, a. & adv.
Definition: At or toward the rear.
Source: Webster’s Unabridged Dictionary 1913 Edition