stalworthhead--prophetes.ai

† ˈstalworthhead Obs.
  In 3 stalwardhede.
  [f. stalworth a. + -head.]
  Stalwartness, courage.

1297 R. Glouc. (Rolls) 4337 Þo hii to þe king come & ssewede hor stalwardhede. Ibid. 5548. Ibid. 5937.

Oxford English Dictionary