I don’t know if you’ve answered this before, but what was the reaction of Dis/Thorin/ Frerin to Dwalin naming his youngest son Frerin

Well, I’ve done a bit of this answer? Definitely Thorin’s and Frerin’s reactions to their namesakes, anyway.

Thorin’s response to the naming of Dwalin’s last child was utter gratitude. He immediately dragged his brother close and held him as Frerin reeled with the knowledge that he was not forgotten

(Then Thorin had to endure three straight days of Frerin crowing about it.) 

Dis’ reactions to all three, though…

Dis’ reaction to Wee Thorin’s name was to stare at Dwalin as though skewering him through with daggers made entirely of her will. Then she said, “another one.”

Dwalin had the good grace to look sheepish. 

When Balinith came along, Dis only clenched her jaw and sighed.

When Frerinith came along, and Dwalin told her the name Orla had chosen (hesitantly, his massive hands wringing the edge of his tunic), Dis had to stand and leave the room very quickly. 

She’d nearly forgotten what it was to cry with happiness. 

is sauron able to get some power over the dead dwarves when he uses their dark names?

Absolutely. It’s naming the very soul of them, the deepest, most intimate core of who they are. 

Sauron using their dark-name is a brutal and horrible display of power, of violation. That’s why they are so shaken: that name is to be used with love and respect and care. The Dwarves would only ever expect to hear it from one they love. One they trust. 

Sauron is using those connotations in the most vile manner possible. He is abusing that expectation of trust.

In light of all this Dark Name talk, about thorin over hearing (and then using) Gimli’s Dark Name would be kinda on the skeevy lines??? Like the same ilk of him reading bilbo’s book??? Like, he’s dead and he’s thorin what else is he gonna do but it’s also sooorrttaa Not Done??? Or am I miss reading that scene? Idk basically: what do??? (Btw I love love love all the writing stuffs you do it great :)

Hey Nonnie! Aw, thanks! Glad you’re enjoying!

Yes, it’s a bit – uh, well. The moment between Gloin and Gimli in Rivendell was intensely private. It was a special moment, a reaffirmation of self, before Gloin sent his son away to save the world. 

Thorin overhearing that is a little bit. Well.

Still, he’s dead. It’s not as though he ever thought he would get the chance to speak to Gimli at all, and be known as himself and not as a passing thought in Gimli’s subconscious. He never thought he would get the chance to hear that name from Gimli’s own lips. He thought his affection for Gimli would forever be one-sided, and so was eager for any scraps of Gimli’s life that he could have. 

Thorin using it, though (and above stone! In the open air!!) – that was a bit of a low blow. Naughty Thorin.