Meaning

noun a unit of length equal to 1,760 yards or 5,280 feet; exactly 1609.344 meters

noun a unit of length used in navigation; exactly 1,852 meters; historically based on the distance spanned by one minute of arc in latitude

noun a large distance

originFrom Old French given name Milo, of problematic origin, possibly from an unknown Germanic element, or a short form of Slavic names beginning with mil- "grace, favor". The English form is associated by folk etymology with Latin mīles (“soldier”). As a surname, it is also derived from a Middle English Miles form of Michael.

Etymology from Wiktionary, CC BY-SA 3.0