7 letters · 10 points in Scrabble
verb make broader
verb extend in scope or range or area
verb vary in order to spread risk or to expand
originEtymology tree Proto-Indo-European *bʰer-der.? Proto-Germanic *braidaz Proto-West Germanic *braid Old English brād Middle English brod English broad English -en English broaden From broad + -en (verbal suffix).
Etymology from Wiktionary, CC BY-SA 3.0