D defs.my
Entry 1 sense Webster, 1913

Royalet

· Roy·al·et · IPA /ˌɹɔɪəˈlɛt/
01 n. A petty or powerless king.
  1. 1.
    A petty or powerless king.[R.]
    “there were at this time two other royalets, as only kings by his leave.” Fuller.