knobble

plural knobbles

1. A small knob.

   […] I stared down into the chasm of this baby’s mouth, where the little pink knobble at the back of his throat was wiggling with the wind of his howl.

   2004, Andrea Levy, chapter 59, in Small Island, London: Review, page 524

present singular third person knobbles · participle present knobbling · participle past knobbled · past knobbled

1. transitiveTo give a knobbly surface to.
2. transitiveengineeringTo produce wrought iron by treating (semirefined puddled iron) on a hearth before shingling.

   a knobbling furnace

   1 more example

   knobbled charcoal iron