[All]: Óláfr adds after the fragment (TGT 1927, 47): ok kǫllum vér þat dregit á stál, ef á meðal hendinga verðr ‘and we call that “pulled on to the intercalary” if it comes between hendingar’. Donatus lists this figure but does not elaborate further. It is explained in Hiberno-Latin commentaries, e.g. Ars Laureshamensis (CCCM 40A, 198): Myotacismus est, quotiens m inter duas uocales ponitur, ut ‘bonum aurum’ ‘Mytacismus is whenever <m> is placed between two vowels, as in bonum aurum [good gold]’. Normally the term is only applied to where <m> occurs at the end of a word which is followed by a word starting in a vowel or <m> (cf. OED: metacism). Here, Óláfr has applied it more loosely to any instance where the letter <m> occurs between vowels.