errore juris 'by error of law'.

• malicious mischief
• malicious prosecution
• malingerer
• man
• management committee
• managing director
• mandamus
• mandate
• manslaughter
• mansuetae naturae
• march-fences
• Mareva injunction
• marginal notes
• marketable title
• market overt
• marriage
• marshalling
• Martinmas
• master
• Master of the Rolls
• material breach
• material facts
• maternity allowance
• maternity rights
• matrimonial home