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--- Prefix 無 MU = "without | -less"
無 mu = "without | -less" prefix   Ref. 無 [-less]
無名 mumei anonymous | unknown   Ref. 無 [-less]
無言 mugon silent | mute   Ref. 無 [-less]
無限 mugen infinity   Ref. 限 [limit]
無力 muryoku powerless   Ref. 力 [strength]