Definition of comitatus
1 : a body of wellborn men attached to a king or chieftain by the duty of military service; also : the status of the body so attached
2 [Medieval Latin, from Latin] : county —used chiefly in the phrase posse comitatus
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Origin and Etymology of comitatus
Latin, escort, retinue, imperial court, from comit-, comes companion + -atus -ate — more at count
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