Habitual practice or use (of anything).

The habitual doing or carrying on of something; usual, customary, or constant action or performance; conduct.

The fact of being or becoming accustomed to something through regular practice; habituation.

Habitual occupation or employment; customary practice. to make it one's exercise: to make it one's employment. Obsolete.

The action of making usual, habitual, or familiar; familiarization; (also) habitual practice.

use; practice.

The constant use or repetition of (something); frequent practice. Obsolete.