The term 'more ancient' can be described by four crossword solutions: OLDER (5 letters), OLD (3 letters), ANTIQUE (7 letters), and EARLIER (7 letters). OLDER is a comparative adjective meaning having existed for a longer time; it is used to describe something that has been around for a long period of time. OLD is also a comparative adjective, but it is used to describe something that has been around for a shorter period of time than OLDER. ANTIQUE is an adjective used to describe something that is very OLD, usually from a previous era. Finally, EARLIER is an adverb used to describe something that happened or existed before something else.