Artificial intelligent assistant

fort-royal

ˈfort-ˌroyal Obs.
  [f. fort + royal a. Cf. Fr. bastion royal a great bastion.]
  Some kind of fort of great size and strength: see quot. 1706.

1645 N. Stone Enchir. Fortif. 39 To convert a Square Fortresse..into a Fort-Royall. 1672 Essex Papers (Camden) I. 4 Kinsale might haue a Forte Royall erected on it [the Harbour]. 1706 Phillips (ed. Kersey), Fort Royal, a Fort that has 26 Fathoms for the Line of Defence.


fig. 1650 T. Hubbert Pill Formality 12 Hypocrisie is the devils Fort-Royal. 1681 Whole Duty Nations 36 To acknowledge this Union the Fort-Royal against the hostile Invasions of Popery.

Oxford English Dictionary

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