A primitive root; to scatter words, i.e. Prate (or hum) -- chant.
Englishman's Concordance
1) (Qal) to improvise carelessly, chant, stammer 1a) meaning dubious Part of Speech: verb A Related Word by BDB/Strong’s Number: a primitive root Same Word by TWOT Number: 1816
Brown-Driver-Briggs
[מָּרַט] verb very dubious,
QalParticiple plural הַמֹּרְטִים עַלמִּֿי הַנָּ֑בֶלAmos 6:5 (Late Hebrew break off, divide, so Syriac ; Late Hebrew מְּרוּטָה, Aramaic מְּרִיטָא, small coin, change, hence) AW Ra AE Ki divide words into parts (in singing), AV chant; and Thes scatter (compare מֶּרֶט) empty words; possibly also would be stammer (of broken speech; said contemptuously): — (Arabic is precede, act hastily, IV. act extravagantly, talk immoderately (see further DrAm. 236), hence) AW (as alternative) improvise carelessly, idly.