Possibly from Old Norse Uladztir, itself from Old Irish Ulaid (“Ulstermen”). More at Ulster.
Meanings
The northern province of Ireland, made up of all six Northern Irish counties and three counties in the Republic of Ireland.
(proscribed) The six counties that make up Northern Ireland.
A county named after the Irish province in New York State: see Ulster County.
Ulster County saw a smaller, but still dramatic spike in reported cases last year with 419, compared to 351 in 2016. Ulster also largely has seen a decline in the number of annual cases from a high of 778 in 2008 to the low in 2016. 2018 August 23, “Lyme diseases cases spiked by 50 percent in Dutchess in 2017”, in Poughkeepsie Journal, archived from the original on 10 Apr 2021:
A township in Floyd County, Iowa, United States.
A town in Ulster County, New York, United States.
A township in Bradford County, Pennsylvania, United States.
gd Ulaidh (northern province of Ireland) · ru О́льстер (northern province of Ireland) · tr Ulster (northern province of Ireland) · pt Úlster (northern province of Ireland) · ga Ulaidh (northern province of Ireland) · mk А́лстер (northern province of Ireland) · sco Norlin Airlann (Northern Ireland) · uk Ольстер (northern province of Ireland) · pl Ulster (northern province of Ireland) · fi Ulsteri (northern province of Ireland) · gv Ullee (northern province of Ireland) · ga Tuaisceart Éireann (Northern Ireland) · gv Ultagh (Relating to, or originating from Ulster) · la Ultōnia (northern province of Ireland) · cmn 阿爾斯特 /阿尔斯特 (northern province of Ireland) · fi Pohjois-Irlanti (Northern Ireland) · de Ulster (northern province of Ireland) · mk а́лстерски (Relating to, or originating from Ulster) · ga Ultach (Relating to, or originating from Ulster) · ga Cúige Uladh m Cúigeadh Uladh (northern province of Ireland) · la Ultōniēnsis (Relating to, or originating from Ulster) · pl ulsterski (Relating to, or originating from Ulster) · fi ulsterilainen (Relating to, or originating from Ulster) · sga Ulaid (northern province of Ireland) · pl Ulster (Northern Ireland) · pt Irlanda do Norte (Northern Ireland) · it Ulster (northern province of Ireland) · mk А́лстер (Northern Ireland)