From Latin: acious Sample words for the root acious: gracious, spacious, vivacious, voracious, rapacious, audacious, tenacious, capacious, fallacious, loquacious, sagacious, inefficacious, mendacious, perspicacious, pertinacious, salacious. Each word has meanings and examples. Click their buttons to get sentences selected from classic works and modern media.