The Old English word for "no" is "nān."
The Old English word "monath" means "month." It is the word from which the modern English term "month" is derived.
the old English word for yes is yea
The word "obsolete" means an old or outdated version of something.
The Latin equivalent of the English phrase 'old stories' is veteres fabulae. In the word-by-word translation, the adjective 'veteres' means 'old'. The noun 'fabulae' means 'stories'.
Ancient
The root word for "senior" is the Latin word "senex," which means old or old man.
I do not think that is a word in olde English.
Youthless
aged superannuated
century
it means old