It makes a great deal of sense that Matoran, who were intended to be nonsapient components in a greater machine, would have their individual designations ('names') within the system originate as purpose-verbs (eg, construct, analyze, record) rather than anything else. We could even look to more ancient Spherus Magnan concepts from which the Great Beings presumably drew their language of construction; Glatorian may share that element if it refers to "someone whose purpose is to fight" or similar.