The Austronesian Comparative Dictionary

*taŋaq₁ incapable, incompetent

PPh taŋaq₁ incapable, incompetent

WMP
Pangasinan taŋá stupid
Cebuano táŋaʔ inattentive, doing even simple things incompetently; consider someone incompetent
Maranao taŋaʔ absentminded, slow person
Tausug taŋaʔ (of speech) stammering