Rigour

rig′ur, n. the quality of being rigid or severe: stiffne of opinion or temper: strictne : exactne : violence: relentle ne : severity of climate: (med. , spelt Rigor ; see above).— adj. Rig′orous , exercising rigour: allowing no abatement: marked by severity: harsh: scrupulously accurate: very severe.— adv. Rig′orously .— ns. Rig′orousne ; Rig′ourism ( R.C. ), the opposite of Probalilism ; Rig′ourist , a person of strict principles: a purist. [L. rigor — rigēre. ]