L. Boare, mugire, E. moo; F. beugler, E. bellow; G. leuen, L. lugere, E. low, are all attempts at the same sound, or, which would not affect the question, variations of an original radical gô or gu.

L. Boare, mugire, E. moo; F. beugler, E. bellow; G. leuen, L. lugere, E. low, are all attempts at the same sound, or, which would not affect the question, variations of an original radical gô or gu.