leg·​i·​tim | \ˈlejəˌtim\
plural -s

Definition of legitim 

: the portion of an estate usually including both real and personal property reserved to the children and sometimes other heirs upon the death of the father under Roman, civil, and Scots law — compare dead's part, reasonable part

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History and Etymology for legitim

French légitime, from Middle French, from Medieval Latin legitima, from Latin, feminine of legitimus legitimate

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a private place of worship

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