Yes, they’re all in here:
Well… “R”?
Or ‘T’?
Hommina Hommina Hommina, “H”?
Ssss.
I, yi, yi yi…
And the obvious “M”?
U, please.
Done:
H E R / M I E N / _ A S / D E M U R E / , / I N S O U C I A N T .
Oh, very well. I’ll guess the “W”.
Correct, @Prof.Pepperwinkle! You win.
HER MIEN WAS DEMURE, INSOUCIANT.
I’m sorry I didn’t act prompter - I’m on vacation. 
It’s always slower on the weekends.
Next one:
_ / _ _ _ _ _ / _ _ / _ _ _ _ / _ _ / _ _ / _ _ _ _ _ _ / _ _ _ _ _ / _ _ _ _ _ / _ _ / _ _ _ _ _ _ _ _ _ _ , / _ _ _ _ _ _ / _ _ _ _ _ / _ _ _ / _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ / _ _ / _ _ _ _ _ _ _ _ / _ _ .
The obligatory ‘E’ please.
And ‘T’ as well.
A, please
_ / _ A _ _ A / _ _ / _ A _ _ / T _ / _ _ / _ _ TT_ E / _ _ A_ _ / _ _ A_ _ / _ _ / _ EA _ A_ E _ _ A , / _ A _ A _ _ / _ _ E_ E / T _ E / _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ A_ _ A A / _ _ / _ _ _ _ _ _ _ / _ _ .
Very well.
At least one ‘O’ seems to be necessary.
A 21-letter word ending in aa?
I wanna see an I, sez I.