etymologize

False etymologizing also has given rise to new values just as it has given rise to new spellings in English.

Before etymologizing on the word, we must try to fix its Old Celtic form.

Have no faith in those who etymologize on the strength of sounds, and not on that of letters, and of letters, moreover, dealt with according to fixed and recognized laws of equivalence and permutation.

All experience, indeed, proves how perilous it is to etymologize at random, and on the strength of mere surface similarities of sound.