1809. Immigrant is perhaps the only new word, of which the circumstances of the United States has [sic] in any degree demanded the addition to the English language.E. A. Kendall, Travels, ii. 252 note. (N.E.D.) (Italics in the original.)
1821. Immigrate (of which examples occur in 1623, 1651, N.E.D.) is defended as an Americanism by Dr. Dwight.Travels, iv. 285.