To think that 'obligated' is not a proper word?

[EElisavetaOfBelsornia]

It should be obliged, surely?

Thank you Bagel. .

Online dictionary never helps, Ego .

Elisaveta glad to be of service, your Royal Highness!

But that sentence works just as well better with 'obliged'.

We need Miss Annersley to adjudicate.

I'm not RC but I've heard Catholic friends talking about Holy Days of Obligation. Isn't that from obligated and has a hint of necessity rather than favour?

No, it's from oblige. Like obliged is. You're obliged to go to Mass. There is no need to invent a new word for this!

Obligated is v much a separate word!
Use the Google ngram viewer if you want to see how the two have been used over the last 500 years, v interesting.
Peaks in 1590s, 1670s, 1740s and 1820s (though moreso in us English)
I love ngram!