Not evil English name derived from Greek akakia, itself from the Greek elements a not and kakos evil Acacia is the name of a fraternity and of a flowering shrub/tree. In Freemasonry, the Acacia symbolizes immortality of the soul, innocence and purity, and birth into a new life. The acaica seyal is believed to have been the shittah-tree (Isaiah 41:19) which furnished the wood for the Ark of the Covenant and for the Tabernacle.