"pertaining to geography," 1550s, from Late Latin geographicus (from Greek geographikos, from geographia; see geography) + -al (1). Related: Geographically.[geographical etymology, geographical origin, 英语词源]
from Dutch Nederland, literally "lower land" (see nether); said to have been used by the Austrians (who ruled much of the southern part of the Low Countries from 1713 to 1795), by way of contrast to the mountains they knew, but the name is older than this. The Netherlands formerly included Flanders and thus were equivalent geographically and etymologically to the Low Countries. Related: Netherlander; Netherlandish (c. 1600).
"The evolution of one or more new species from an ancestral species that becomes split into geographically separate populations which diverge genetically over a period of time", 1940s; earliest use found in American Naturalist.