Emily Dickinson Lexicon

ANX-I'E-TY, n. [angzi'ety; L. anxietas, from anxius, solicitous; L. ango. See Anger.]

1. Concern or solicitude respecting some event, future or uncertain, which disturbs the mind, and keeps it in a state of painful uneasiness. It expresses more than uneasiness or disturbance, and even more than trouble or solicitude. It usually springs from fear, or serious apprehension of evil, and involves a suspense respecting an event, and often a perplexity of mind, to know how to shape our conduct.
2. In medical language, uneasiness; unceasing restlessness in sickness.