Black's Law Dictionary (2nd edition)dictionaries

Idem Sonans

Sounding the same or alike; having the same sound. A term ap-plied to names which are substantially the same, though slightly varied In the spelling, as “Lawrence” and “Lawrance,” and the llke. 1 Cromp. & M. 806 ; 3 Chit. Gen. Pr. 171

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