byway/ˈbaɪweɪ/EtymologyFrom Middle English bywey, equivalent to by- + way.nounA road or track not following a main route; a secondary or minor road or path.“Near-synonyms: back road, back street, back lane”A road that is not frequently travelled.a little-known or arcane field of study or detail.“Though his account of written communication over the past 5,000 years necessarily has a powerful forward momentum, his diversions down the fascinating byways of the subject are irresistible ...”