noun see: pro- Date: 15th century a brownish resinous material of waxy consistency collected by bees from the buds of trees and used as a cement in repairing and maintaining the hive
PROPOLIS
Meaning of PROPOLIS in English
Merriam Webster. Explanatory English dictionary Merriam Webster. Толковый словарь английского языка Мерриам-Уэбстер. 2012