A noun given as ᴹQ. {mahtale >>} mankale “commerce” in The Etymologies of the 1930s based on ᴹQ. {mahta- >>} manka- “trade” (Ety/MBAKH).
Conceptual Development: The Qenya Lexicon of the 1910s had ᴱQ. vaktele “trade” based on ᴱQ. vakt- “wares” (QL/99).
A verb given as ᴹQ. {mahta- >> māka- >>} manka- “trade” in The Etymologies of the 1930s under the root ᴹ√MBAKH “exchange” (Ety/MBAKH).