by Elio — Sym­pa­try means that two species co­ex­ist in the same phys­i­cal area, al­lopa­try that they don't. The et­y­mol­ogy of the suf­fix pa­tris, helps. It comes from the Latin for 'fa­ther­land,' as in 'pa­triot' (or, for those who re­mem­ber the Mar­seil­laise, "Alons en­fants de la Pa­trie").