Indonesian edit

Etymology edit

Borrowed from Dutch riool (sewer), from Middle Dutch riole, probably from Middle French rigole (ditch, sewer), from Old French regol, from Middle Dutch regel (row), from Latin rēgula (straight line).

Pronunciation edit

Noun edit

riol (plural riol-riol, first-person possessive riolku, second-person possessive riolmu, third-person possessive riolnya)

  1. sewer: a pipe or system of pipes used to remove human waste and to provide drainage.

Further reading edit

Middle English edit

Adjective edit

riol

  1. Alternative form of ryal