Ge-cyssan

According to the Old English Dictionary:

ge-cyssan

p. -cyste; pp. -cyssed [cyssan to kiss] To kiss; oscŭlāri :-- Gecyste cyning þegn betstan the king kissed the best of thanes, Beo. Th. 3744; B. 1870. Gecyste foet his osculabatur pedes ejus, Lk. Skt. Lind. 7, 38. ge-cyssan