gewissian

Meaning

1. to cause to know, instruct, inform

   On ðām tīman wæs sum þėgen Drihtelm ġehāten, on Norðhymbra lande, bilewite on andgyte, ġemetegod on ðēawum, ārfæst on līfe, and his hīwrǣdene tō ðām ylcan ġewissode.

   At that time there was a certain servant living in Northumbria, called Drihtelm, who was innocent of mind, temperate of character, righteous in life, and instructed his household on how to do the same.

   Homilies of the Anglo-Saxon Church

2. to command, govern, direct

Conjugation