Useful english dictionary. 2012.
knubbly — /nub lee/, adj., knubblier, knubbliest. nubbly. * * * … Universalium
nubbly — /nub lee/, adj., nubblier, nubbliest. 1. full of small protuberances. 2. in the form of small lumps. Also, knubbly. [1820 30; NUBBLE + Y1] * * * … Universalium