Emily Dickinson Lexicon

AS'PI-RATE, v.t. [L. aspiro, to breathe or blow; Gr. ασπαιρω, to palpitate; from spiro and σπαιρω; Ar. صَفَرَ safara, to hiss, or make a hissing by blowing on a wind instrument. See Spire, Spirit.]

To pronounce with a breathing or full emission of breath. We aspirate the words horse and house. – Dryden.