Or tlunnah {tel-oon-naw'}; from luwn in the sense of obstinacy; a grumbling -- murmuring.
see HEBREW luwn
H8519. tluwnah
[תְּלֻנָּה] noun feminine murmuring; — plural construct תְּלֻנּוֺת (תְּלוּנֹּת) Exodus 16:12 2t.; suffix תְּלֹֻנּתֵיכֶם 16:7 3t.; תְּלוּנֹּתָם Numbers 17:25; — murmurings of Israel against ׳י (only P); 16:9, 12; Numbers 17:25; followed by עַל 16:7-8, compare 16:8, Numbers 14:27; Numbers 17:20 ( + על מַלִּינִם).