[PAULUS libro nono ad edictum. ] §50.16.18.pr'Munus' tribus modis dicitur: uno donum, et inde munera dici dari mittiue: altero onus, quod cum remittatur, uacationem militiae munerisque praestat inde immunitatem appellari. tertio officium, unde munera militaria et quosdam milites munificos uocari: igitur municipes dici, quod munera ciuilia capiant.
[PAULUS, in the ninth book on the Edict.] 'Munus' is used in three senses: first, as a gift, and thence gifts are said to be given or sent; second, as a burden, which, when it is remitted, grants exemption from military service and duty, whence it is called 'immunitas'; third, as a duty, whence we speak of 'military duties', and certain soldiers are called 'munifici'; therefore, they are called 'municipes' because they undertake civic duties.