What is the meaning of Ache?

To suffer pain; to be the source of, or be in, pain, especially continued dull pain; to be distressed.

To cause someone or something to suffer pain.

Continued dull pain, as distinguished from sudden twinges, or spasmodic pain.

Parsley.

Rare spelling of aitch.

celery (plant)

aitch, The name of the Latin script letter H/h.

inflection of achar:

1. first/third-person singular present subjunctive
2. third-person singular imperative

first/third-person singular present subjunctive

third-person singular imperative

Aching; long-lasting hurting or injury.

A plant of the genus Apium, especially celery.

wild celery

inflection of achar:

1. first/third-person singular present subjunctive
2. third-person singular imperative

first/third-person singular present subjunctive

third-person singular imperative

Source: wiktionary.org