Mostestearly 

An extension of the word more or most.

"I love you."

"I love you more."
"I love you mostestearly."

Mostestearly by Ferriskissywheel December 17, 2016

mostesterably 

When the word mostest just doesn't cut it. It is most, at its most times ten.

She is the mostesterably best friend ever

mostesterably by Punishher69 February 19, 2019