Just a short little Trisha/Hoho drabble explaining one of my head canons about why the Elric family goes by Elric. The lullaby Trisha is singing at the beginning is Lullaby For a Stormy Night by Vienna Teng.
"Makes the beautiful world that you'll see, in the morning."
Hohenheim looked around blearily. Something had woken him up, but he wasn't sure what. It was only when he heard the thunder and saw the light streak across the sky that he realized the storm had woken him up. The people of Resembool had been giving him warnings about this storm for at least two weeks. Hohenheim shook his head. Even after all he had lived and all he had learned, the average human never ceased to amaze him. It wasn't hard to tell there was going to be a storm yesterday, but two weeks ago it seemed insane to think there was going to be a thunder storm of this proportion.
"Trisha?" he asked loudly. This wasn't the first night he had woken up without her next to him since their son's birth, but usually she could be found nearby.
"I'm here, Van," he heard her voice say from down the hall. He padded down the carpeted hall as quietly as he could before entering the nursery room. His wife was sitting in a rocking chair, holding Edward in her arms.
"What are you doing in here?" he asked awkwardly, not knowing what to do with himself.
"Ed was scared by the storm and I came in here to calm him down. You've been working so hard; I didn't want him to wake you up."
"Is he better?" Hohenheim asked after a few moments of silence. Trisha smiled and stood up, handing the bundle to him. Ed's tiny face—the only part of his anatomy visible—peaked out of the blankets. His face was screwed up as if there was something frustrating him. Hohenheim had to bite his lip to keep from laughing. The expression reminded him very much of himself.
"He's beautiful," Trisha said softly, looking directly at his face. "It's a miracle that something as beautiful as him can exist."
"It is," he agreed. "A hundred times over."
"Little Edward Hohenheim." Hohenheim started a little, then immediately looked down, afraid he had woken the child up. He hadn't.
"Please don't call him that, Trisha." She coked her head to side and frowned.
"Why not? That's his name. I don't care if the State won't say we're married but because they won't recognize a small town's wedding ceremony, I'm your wife. I'm taking your name. Trisha Hohenheim. Edward Hohenheim."
"No. No, I can't let you." Her frowned deepened.
"Why not?"
"This name… this name is the name of a monster—"
"Van—" she said sharply, and he quickly corrected himself.
"It was given to me by a monster." She at least couldn't argue with that. "I can't pass that on...give that to my son. I can't give that to you. You are clean and pure and I can't let you… I can't ruin that."
"You already did," she said with a sly smirk that made his cheeks turn a little red.
"But not… please. I carry this name as a reminder of what happened, what I did and what he did. I don't want to give that to you or my son." Not to mention if they ever found the name Hohenheim, his family would never be able to rest. He couldn't let that happen to them. He refused to let that happen to them.
"Van... do you really feel that way?"
"Yes."
She pursed her lip and stared at him unhappily.
Then finally:
"Alright Va—" She stopped, closed her mouth, then smiled, kissing him on the cheek. "Alright, dear. Edward Elric has a nicer ring to it, I suppose."