Arabic words usually have triliterals, which are triconsonantal (three-consonant) roots. The root of mujahidin is J-H-D (ج-ه-د), meaning "effort or sacrifice" ("Jihad" can mean to struggle and "Mujahideen" can mean struggler.) However, the particular verb stem of J-H-D from which both jihad and mujahid are derived means "to exert effort against" or "to struggle". Mujahid is originally, therefore, "someone who struggles". The term has, even in Arabic, taken on meanings that are specifically religious, or specifically military or paramilitary, or both.