monogen adj.
(UK Und.) of jewels, of the highest quality/value.
Dict. Sl. and Cant n.p.: rum or monogen good, the most valuable of any thing; jewels, diamonds. | ||
Flash Dict. | ||
Modern Flash Dict. 29: Rum, or monogin – good, the most valuable of any thing jewels, diamonds. | ||
Flash Dict. in Sinks of London Laid Open [as cit. 1835]. |