Emily Dickinson Lexicon

RET'I-CENCE, or RET'I-CEN-CY, n. [Fr. reticence, from L. reticentia, reticeo; re and taceo, to be silent.]

Concealment by silence. In rhetoric, aposiopesis or suppression; a figure by which a person really speaks of a thing, while he makes a show as if he would say nothing on the subject. – Encyc.