dyslexia (n.)

c. 1887, from German dyslexie (1883), from Greek dys- "bad, abnormal, difficult" (see dys-) + lexis "word," from legein "speak" (from PIE root *leg- (1) "to collect, gather," with derivatives meaning "to speak (to 'pick out words')") + abstract noun ending -ia. Dyslexic (n.) is first recorded 1961; dyslectic (adj.) from 1964.