famous

From Middle English famous, borrowed from Anglo-Norman famous, from Latin fāmōsus — literally fame plus the adjective-forming suffix -ous.

The facts don't describe a shift in meaning, only that this borrowed word eventually pushed out the native Old English word hlīsful, which had covered the same idea.

It shares its root with fame itself — famous is built directly from fame plus -ous, so the two are as closely related as words get.