a descriptive atlas of the Middle Ages, giving sailing directions and providing charts showing rhumb lines and the location of ports and various coastal features; portolano
Word origin
[1490–1500; var. of ruttier ‹ MF routier, equiv. to routeroute + -ier-ier2]This word is first recorded in the period 1490–1500. Other words that entered Englishat around the same time include: bulkhead, filler, passport, pointer, zone