8 letters · 20 points in Scrabble
adjective directed or facing toward the back or rear
adjective (used of temperament or behavior) marked by a retiring nature
adjective retarded in intellectual development
originFrom Middle English bakwarde, abakward, equivalent to back (adverb) + -ward. Cognate with Old Frisian bekward (“backward”).
Etymology from Wiktionary, CC BY-SA 3.0