The inability
The inability to think of
The right word
The correct word
Yes! That word!

You would think as logophiles,
Maybe you or me
Would have inexperience with such a topic
But we do

Natsukashi (Sudden nostalgia, triggered by experiencing something for the first time in years)
Perspicacious (Having or showing an ability to notice and understand things that are difficult or not obvious)
Defenestration (The act of throwing someone out of a window)
Vellichor (The strange happiness of used bookshops)
Chrysalism (The tranquility of being inside during a thunderstorm)

The satisfaction
The contentment
The fulfillment
The pride
Of finding the “YES” word

The inability to think of THAT word
Wait! It’s called lethologica!
Thank goodness!
Wasn’t that the title though?