kill, injure

戕 is composed of 爿 (bed, table) and 戈 (spear, weapon). 爿 is a pictograph of a bed or large table, with a surface large enough to display anything clearly, revealing the deeper significance of objects placed upon it. 戈 depicts a weapon with a long handle and horizontal blade. Thus, 戕 conveys the deeper significance of this weapon, meaning to kill or harm.