wordnesia

Blend of word +‎ amnesia.

wordnesia (uncountable)

1. (uncommon) A phenomenon where one cannot recall the spelling of a common word, despite knowing its pronunciation and having previously written it numerous times.
2. (rare) Synonym of semantic satiation (“a phenomenon where the repetition of a word or phrase causes it to temporarily lose all meaning to a reader or listener”).

• (first sense) lethologica, presque vu