In verse the scribe‘s copying unit tends to be the line or half-line, so that verbal similarities at line-end (homoeoteleuton) or line-beginning (homoearchon)~19~ are particularly likely to mislead him. […] 19 The terms are applicable to any pair of words or phrases, not only to lines of verse. For ‘homoearchon’ some use the equally correct formation ‘homoearcton’. ‘Homoeomeson’, coined by Housman, has established itself as a useful addition to the group.