ob non solutum canonem (ob non s<<schwa>>-loo-t<<schwa>>m k<<schwa>>-noh-n<< schwa>>m). [Law Latin] Scots law. On account of unpaid canon or feu duty. • A vassal could forfeit land if the vassal failed to pay the feu duty for two (later five) years. See FEU.

[Blacks Law 8th]