κόκκῳ [6 verses](noun sg masc dat) "Frain" is kokkos, which means "a grain" and "a seed," "testicles," and it is a metaphor for a "grain of sense." -- The word translated as "grain" means "kernel," or "grain." It can also mean "seed." However, it is not the most common word for a "seed" in Greek which is a different word in Greek.