Artificial intelligent assistant

stathelfast

ˈstathelfast, a. Obs.
  Forms: 1 staðolfæst, 3 staðelvæst, -fest.
  [OE. staðolfæst, f. staðol foundation (see staddle n.) + fæst fast a.]
  Firm, steadfast.

c 888 ælfred Boeth. xxxv. §3 He is ana staðolfæst wealdend & stiora. c 950 Lindisf. Gosp. Matt., Pref. (1887) 5/15 Cirica..ofer staðolfæst stan..ᵹeseted is. c 1205 Lay. 9819 Þu hauest mucle treow-scipe treowðe staðeluæste. a 1225 Leg. Kath. 71 In þis ilke burh wes wuniende a meiden..steðelfest wiðinnen, of treowe bileaue.

Oxford English Dictionary

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