Words with the prefix 'com-' include:
coma. comate. comatose. comb. combat. combatant. combative.
combed. comber. combinable. combination. combinational.
combinative. combinatory. combine. combing. combining. combo.
comburant. combust. combustive. come. comfit. comfort. comfortable.
comfortably. comforted. comforter. comforting. comforts. comfrey.
comic. comical. coming. comity. comma. command. commandant.
commander. commando. commemorate. commence. commend. commendable.
commensurable. comment. commentary. commerce. commercial.
commercialize. commination. commiserate. comose. compact.
companion. company. comparative. compare. compartment. compass.
compassion. compatible. compatriot. compel. compensate. competence.
competition. compilation. compile. compiler. Computer. comrade.
comradeship. comstockery.