Some U.S. states have names that seem to adapt easily to form the adjectives and nouns used when making reference to something or someone from that state—words that are called demonyms. For example, Californian, Vermonter, and Floridian are words that are easy to say and transparent in meaning. Other states, not so much. What do we call a person from Wyoming or Massachusetts? It seems that there are two kinds of state names—those from which demonyms form naturally, and those that don’t.
Connecticut is a hard word to spell, and it’s not at all obvious how to say “a native or resident of Connecticut” in a single word. Sure, someone will point out that Nutmegger is frequently used, but that’s not likely to occur to someone without deepish local knowledge. What’s a Connecticutter to do?
One word that has been proposed is Connecticutian, and it’s been used in straightforward contexts where the meaning is clear:
The big question now, of course, is whether Spielberg will actually change the film. If he does, Courtney definitely wins at fact-checking, and if he doesn't, well he's still an exceptional Connecticutian.
— Adam Clark Estes, theatlantic.com, 5 February 2013
But evidence also shows that it’s sometimes regarded as fanciful or self-conscious, showing that it has not yet gained easy acceptance:
Lindskoog's invention of "Massachusettsian" and "Connecticutian" forces me to confess that I haven't the slightest idea what the citizens of those two states are called.
— Jack Smith, The Los Angeles Times, 2 July 1991
It could be pronounced either \kuh-net-uh-KYOO-shun\ (like Lilliputian or Aleutian or \kuh-net-uh-KYOO-tee-un.
This word has a long history, but only time will tell if it ever catches on:
His own French was transparently Connecticutian.
— Putnam Magazine, December 1856