From an unused root meaning to comminute; meal -- dough.
H6182. arisah
[עֲרִיסָה] noun feminine meaning dubious, usually coarse meal; ᵐ5 AV RV dough, so Toy (with ?) (Late Hebrew עַרְסָן barley-meal; Syriac (in Lexicons) hulled barley, or (compare LagGGN 1889, 301 f.) wheat); > SmEz CoEz kneading-trough (so Late Hebrew עֲרִיסָה Jastr; apparently secondary, עֲרִיסָה also [bed], cradle, see ערשׂ); — only עֲרִיסֹתֵיכֶם רֵאשִׁית Ezekiel 44:30, ׳ר עֲרִיסֹתֵינוּ Nehemiah 10:38; ׳ר עֲרִסֹתֵיכֶם Numbers 15:20-21, (P).
עֲרוֺעֵר עֲרֹעֵר, עַרְעֹר, עַרְעָר, see ערר.
I. ערף (√ of following; meaning dubious; Late Hebrew עוֺרֶף = Biblical Hebrew; Arabic mane of horse, also part of neck where hair grows, etc.).