Daikon or beet (4)
I believe the answer is:
root
(Other definitions for root that I've seen before include "Basic cause or origin" , "Rummage for plant base" , "essential nature" , "burrow" , "Underground part of a plant" .)
I believe the answer is:
root
(Other definitions for root that I've seen before include "Basic cause or origin" , "Rummage for plant base" , "essential nature" , "burrow" , "Underground part of a plant" .)