Summary

Portrait of John Morris Jones John Morris Jones A Welsh Grammar, Historical and Comparative (1913)

In modern writing the division of syllables where required, as at the end of a line, is made to follow the etymology rather than the sound; thus it is usual to divide can-u ‘to sing’ so, can being the stem and u the ending, instead of ca-nu, which is the true syllabic division. In the case of more than one written consonant the division is usually made to follow the sound; thus, can-nu ‘to whiten’, plen-tyn ‘a child’, the etymological division being cann-u, plent-yn. Ml. scribes divided a word anywhere, even in the middle of a digraph.
Source: Wikisource

Portrait of John Morris Jones John Morris Jones A Welsh Grammar, Historical and Comparative (1913)

In Welsh the accent is a stress accent.
A syllable may be emphasized either by raising the tone of voice or by a more forcible utterance. The two things may go together; but speakers of various languages unconsciously adopt one or the other as their principle of accentuation. The first produces musical or pitch accent, the second produces expiratory or stress accent. In Pr. Aryan the accent before the dispersion is believed to have been predominantly pitch, though vowel gradation, § 63, points to the working of a strong stress accent.
Source: Wikisource

Portrait of John Morris Jones John Morris Jones A Welsh Grammar, Historical and Comparative (1913)

The medium vowel, or short vowel with open stress, which occurs in the penult, is not heard in English where a penultimate accented vowel, if not short as in fathom, is long as in father. Silvan Evans calls the medium vowel “long”, and J.D.R. often circumflexes it. But the a of cá|nu is not long, except in comparison with the a of cán|nu; beside the a of cân it is short. It is a short vowel slightly prolonged past the point of fullest stress, so as to complete the syllable, and the following consonant is taken over to the ultima.
Source: Wikisource

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