duplify means to double. Lexicurio rates it Sui generis — a strength score of 95 out of 100.
verb
- To double.“If the bees of a triplet lie out, before the uſual time of deprivation, it ſhould be taken and placed at a conſiderable diſtance, and the duplified ſtock raiſed on a nadir hive: […]”