(of a voice 声音 deep and rough, and often sounding unfriendly 低沉沙哑的；生硬的 (of a person’s behaviour 人的行为 impatient and unfriendly 冷淡的；态度生硬的
Word Originlate 15th cent. (in the sense ‘coarse-grained’): from Flemish and Dutch grof ‘coarse, rude’, of West Germanic origin.