Present: nog DK. nogs DS, TC. Past: nogs DK, [DS], TC. Future: nog DK. nogs [DS], TC. Imperative: nogs DK. - TC. Involuntary: TC. Intransitive: DS, TC. Meaning: To become dirty, dull, be faded DK. To clean, rub out, erase DS. To be hit by a bad smell, to deteriorate in newness or luster TC.