Mundungus (noun) (archaic)
Tobacco of poor quality, bad smelling.
Mid 17th century (in an earlier sense). From mondongo or its etymon Spanish mondongo.
“You can tell old Bob has been in here with his mundungus, it stinks!”
Machree (noun) (Irish/Scots)
As a form of address: my dear. Now chiefly in “Mother Machree”, expressing (usually ironically) a stereotyped conception of Celtic or Irish identity.
Late 17th century; earliest use found in Irish Hudibras. From Irish mo chroí (Scottish Gaelic mo chridhe) my heart, my beloved from mo my + croí (Scottish Gaelic cridhe) heart from Early Irish cride heart, cognate with heart [interjection, adverb].