From u- + -tengeneza (“to make, to mend”) + -aji. <span class="searchmatch">utengenezaji</span> class XI (no plural) manufacturing repairing...
Verbal derivations: Passive: -tengenezwa Nominal derivations: mtengenezaji (“manufacturer, repairer, developer”) <span class="searchmatch">utengenezaji</span> (“manufacturing, repairing”)...