The term 'deeply rooted' can be described by three words: INBRED, ENTRENCHED, and ENDEMIC. INBRED refers to something that has been bred or cultivated over a long period of time, usually within a family or group. ENTRENCHED means something that is firmly established and difficult to change. ENDEMIC describes something that is native to a particular region or environment and is not found elsewhere. All three words describe something that is deeply rooted and has been around for a long time.