English
Taconic
From Tacony (a certain river) + -ic.
The story
The river's name is borrowed from Unami tèkhane (literally “cold river”), from tè inan (‘cold’) + -hàne (‘river’).
Today it means
name A mountain range in New England, United States; A low mountain range in eastern New York, western Massachusetts, and southwestern Vermont.
Language periods are conventional ranges, not dates for this word.
Etymograph / Taconic