Like mūnia (“duties”), it is derived from Proto-Indo-European *mey- (“change, swap”). As is the case with such derivatives as "municipality", and "immunity", the concept of trading goods and services in a way that conforms to a society's laws is quite pertinent to this term. From the addition of the "co-" prefix came commūnis (“common, public”), which is cognate to Old High German gimeini, Old English gemǣne, Old Dutch gimēni and Old Saxon gimēni.
- a service, office, employment
- a burden, duty, obligation
- a service, favor
- a spectacle, public show
- a gift
Third declension neuter.
- Portuguese: múnus
- “munus” in Charlton T. Lewis & Charles Short, A Latin Dictionary, Oxford: Clarendon Press, 1879.