It is plain that by the second century Latin must have been spreading widely in the province.

We need not feel puzzled about the way in which the Callevan workman of perhaps the third or fourth century learnt his Latin.
[Footnote 1: See Dessau, _Hermes_, xlvi.

156.] At this point we might wish to introduce the arguments deducible from philology.

We might ask whether the phonetics or the vocabulary of the later Celtic and English languages reveal any traces of the influence of Latin, as a spoken tongue, or give negative testimony to its absence.
Unfortunately, the inquiry seems almost hopeless.

The facts are obscure and open to dispute, and the conclusions to be drawn from them are quite uncertain.