taproot
/ˈtæpruːt/Definitions
1. noun
A primary root of a plant that grows straight down into the soil, often serving as the main anchor for the plant.
“The taproot of the carrot made it easy to pull out of the garden.”
2. verb
To establish or fix firmly, especially in a particular place or situation.
“The taproot of the new business will be in the city’s downtown area.”