ńumə̑štam
{verb I} [Generate paradigm] 1. {also figurative} to gnaw at, to nibble at
♢ šümem ojgo ńumə̑šteš {sentence} sorrow is gnawing at my heart
~ ASPECTUAL CONVERB CONSTRUCTIONS ~
// ńumə̑št pə̑tarem {verb II} {perfective} (see above)
♢ tudo lum ńumə̑št pə̑tarə̑šat, kidšə̑m šoβə̑č́eš üštə̑l'ö {sentence} after gnawing the bone, (s)he wipes his/her hands on the towel