northeastern · adjective1
- Old English · inherited fromnorþēasterne
- Middle English · inherited fromnorþesterne
- English todaynortheastern
From Middle English norþesterne, from Old English norþēasterne, equivalent to north + eastern.
Northeastern · adjective2
By surface analysis, equally (1) Northeast + -ern or (2) a proprialization from northeastern.
Etymology from Wiktionary, CC BY-SA 4.0.