It’s about time. We are now on Instagram!
late 13c., bilage "local ordinance," from Old Norse or Old Danish bi-lagu "town law," from byr "place where people dwell, town, village," from bua "to dwell" (see bower) + lagu "law" (see law). So, a local law pertaining to local residents, or rule of a corporation or association. Sense influenced by by.