Definition of: ache

(āk) v.i. ached (ākt), ach·ing
1. To suffer dull, continued pain; be in pain or distress.
2. Colloq. To yearn; be eager; followed by for or the infinitive. [Orig. ake, OE acan; present spelling due to infl. of the n.]
— noun A local, dull, and protracted pain.
See synonyms under AGONY. [OE æce <the v.; pron. before 1700 (āch), present pron. due to infl. of the v.]
—ach′er noun
—ach′ing adjective & noun
—ach′ing·ly adverb