v. Obs. [Only in loc. cit., where it seems to be a mistaken use of the Fr. infinitive avouer, or extension of the synonymy of avow and avower sb. to the vb.] To vow, devote.
a. 1560. Phaër, Æneid, VIII. (1573), X iv. O Juno most of powre! Euen all to thee he kild, and on thine altars did auowre.