rood

noun

1. Archaic a cross as used in crucifixion; specif., the cross on which Jesus was crucified
2. any cross representing this; crucifix, esp. a large one at the entrance to the chancel or choir of a medieval church, often supported on a rood beam or rood screen
3. Brit.
   1. an old unit of linear measure varying locally from 5 to 8 yards; sometimes, 1 rod
   2. an old unit of land measure usually equal to acre (40 square rods)