Black's Law Dictionary (2nd edition)dictionaries

In Extremis

In extremity; in the last’ extremity; in the last illness. 2 Bl. Comm. 375, 500; Prince v. Hazleton, 20 Johns. (N. Y.) 502, 11 Am. Dec. 307. Agens in extremis, being in extremity. Bract, fol. 373b. Declarations in extremis, dying declarations. 1 Greenl. Ev. | 156; wilson v. Boerem, 15 Johns. (N. Y.) 286

Source: Black’s Law Dictionary 2nd Ed (1910)