Miles
The Cyclopedic Law Dictionary · Walter A. Shumaker and George Foster Longsdorf; ed. James C. Cahill · 1922
The Cyclopedic Law Dictionary
In Civil Law. A soldier. Vel a "militia," aut a "multitudine," aut a numero, "mille hominum." Vocat. In Old English Law. A knight, because military service was part of the feudal tenure. Also, a tenant by military service, not a knight.
1 Bl. Comm. 404; Seld. Tit. Hon. 334.