Strictness, severity, rigour.

Austere quality, state, or condition; (in plural) duties, observances, etc., of an austere or exacting character.

The quality of being strait, in various senses. Strictness, rigour, severity.

Excessively rigorous strictness; severity, harshness. Obsolete.

Severity of life or behaviour; inflexibility of principle or virtue.

Strictness, precision, exactitude.

The quality of being stringent; strictness, rigour.