DictionaryRoot: legalis
Latin
legalis
pertaining to the law
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noun
disloyalty
dis-LOY-ul-tee/dɪsˈlɔɪəlti/
Lack of faithfulness to someone or something owed support.
Etymology
The law-related base developed the sense of being honorable and faithful. The negative prefix and noun ending turn that quality into its absence: a failure of faithfulness, especially a violation of allegiance or duty.