tooth

His Wife sate near him, teasing matted wool, / While, from the twin cards toothed with glittering wire / He fed the spindle […]

to tooth a saw

Whereas if the Header of one side of the wall, toothed as much as the Stretcher on the other side, it would be a stronger Toothing, and the joints of the Header on one side, would be in the middle of the Headers of the course they lie upon of the other side