Merely means just or only.I merely wanted to buy a cookie.
It was merely a joke.
It's merely (only) a scratch.
He was merely a customer service representative.The changes merely had any impact.
He was not bored he was merely looking for vandals on wikianswers.
Jenna was driving merely on the road to the park to enjoy the nature.
He merely had to say yes in order for her to be able to go to Spain.
He is merely a servant of the king! or... The bug is merely a small, harmless, ant!
I jumped with a start at the loud noise but it was merely a book that had slipped to the floor.
His family merely perpetuated his lies.
My headache merely amplified the child's volume.
The correct grammar for the sentence is: "Please note that this letter is merely an inquiry regarding your interest and availability."
That's not really a pendulum, it is merely pendulumlike.
in his lectures he reveals himself to be a merely perfunctory speaker.