eloquent

Etymology

From Old French eloquent, from Latin eloquens (“speaking, having the faculty of speech, eloquent”), present participle of eloquor (“to speak out”), from e (“out”) + loquor (“to speak”).

adj

1. Fluently persuasive and articulate.
   an eloquent writer
2. Effective in expressing meaning by speech.
   an eloquent article
3. (medicine) Relating to areas in the brain that serve an identifiable neurological function, in which injury leads to focal deficits or disability.
   Lydiard was diagnosed shortly after new year following speech disturbance and subtle memory issues. He has a high-grade glioma, an aggressive malignant primary brain tumour in the left side. It is in the “eloquent brain”, very close to the part that controls speech, and would have been considered untreatable in the past. 2016-02-07, Caroline Davies, “Been anywhere nice this year? Brain surgery where patients are kept chatting”, in The Guardian