In Tolkien's manuscript, this form was rejected in favor of dangweth , with a slightly different meaning. However, it may possibly be assumed that the word is valid per se (although it may be argued that this compound word does not show the regular mutation that one would have expected)
Primitive elvish
kwet-
verb. say!
bākwet-
verb. to refuse, prohibit, say no
at-kwet
verb. answer
_ n. _answer. Q. aquet. . This gloss was rejected.