gum
noun
1.
a preparation (usually made of sweetened chicle) for chewing
2.
3.
any of various substances (soluble in water) that exude from certain plants; they are gelatinous when moist but harden on drying
Derived from:
gum 4.
5.
wood or lumber from any of various gum trees especially the sweet gum
6.
any of various trees of the genera Eucalyptus or Liquidambar or Nyssa that are sources of gum