Literally meaning: “throughout road”
Origin: Anc Greek
ανά/ana(=preposition that denotes “upon”, “throughout”, “alteration”)
+δρόμος/dromos(= road, street) >δέδρομα/dedroma(=past perfect of verb “τρέχω”(=run).
Αnadromous is the migrating from salt water to up river in fresh water, as salmon of the genera Salmo.