"of or pertaining to the sole of the foot," 1706, from Latin plantaris "pertaining to the sole of the foot," from planta "sole of the foot" (from nasalized form of PIE root *plat- "to spread").
plantar warts can be very painful
planning
plano-
plant
Plantagenet
plantain
plantar
plantation
planter
plantigrade
planting
planxty
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