ETYMOLOGY
from Latin amnicola (growing beside a river)
(from amnis (river) + -cola (inhabitant, worshipper)) + -ist
EXAMPLE
“…society without seleection, constitutional bumpers, and stale anecdotes, I determined to explore the banks of the Liffey, and to search among the amnicolists for that entertainment which eluded my pursuit in the urbanity of the capital…”
From: Hibernian Magazine
By Robert Jephson, 1782
Lexicophilia 