1. Prefix. very old; prehistoric ¹
2. Prefix. very early; primitive ¹
3. Prefix. related to paleontology ¹
¹ Source: wiktionary.com
1. A combining form meaning old, ancient; as, palearctic, paleontology, paleothere, paleography. Alternative forms: palaeo-. Origin: Gr, adj. (29 Oct 1998)