of the original Latin medial consonant t, (in both languages,
Spanish and Italian are the only two that retain a phonological reflex
of the original Latin medial consonant t, (in both languages,
it has been voiced to d, probably a change that occurred in the
common ancestor to all the dialects and languages of the Iberian peninsula.
All the other Romance languages have dropped it. The original r
has also suffered different fates: however, within each language, the
same thing happened in both words. Where we find r deleted in
final position in the word for 'mother', we also find it deleted in the
same position in the word for 'father'.