[yorwba]

The vocabulary clearly reflects Western Japanese, e.g. "Laughable" Okaski corresponds to modern Standard Japanese okasii while retaining the k that's also present in modern inflected forms like okasiku; and "Quick" Faijo corresponds to modern hayai but has the -o ending that's also present fossilized in ohayou gozaimasu. The choice of f instead of h for the first consonant likely also records a historical pronunciation of [ɸ].