the sticky clay (tezoquitl) that can be beaten and thinned and used for making griddles (comalli) (see attestations)
Much like tezoquitl (sticky, gummy clay), comallalli is the earthen/clay material for making griddles (comallil).
"Nicxaqualoa, njctolcapoiotia, njctzotzona, niccanaoa, njcomalchiva, njcomalixca, njtlatexcaltema, njtexcalcevia." [Nicxacualoa, nictolcapoyotia, nictzotzona, niccanahua, nicomalchihua, nicomalixca, nitlatexcaltema, nitexcalcehuia. (orthography adjustment by SW)] = "I knead it, I temper it with reed stem fibres. I beat it, I thin it out. I make griddles, I fire griddles. I fire things in an oven. I cool the oven." (translation by Anderson and Dibble) (1570s, central Mexico)