ep·i·dote 
(ĕpĭ-dōt′)
(ĕpĭ-dōt′)n.
A lustrous yellow, green, or black mineral, Ca2(Al, Fe)3(SiO4)3OH, commonly found in metamorphic rock.
[French épidote, from Greek epididonai, to give in addition, increase (from the greater length of its crystals compared with those of related minerals) : epi-, epi- + didonai, to give; see dō- in the Appendix of Indo-European roots.]
ep′i·dotic (-dŏtĭk) adj.
- inverse function
- inversely
- inverse-square law
- inversion
- invert
- invertase
- invertebrate
- inverted comma
- inverted mordent
- inverter
- invertible
- invert sugar
- invest
- investable
- investible
- investigable
- investigate
- investigation
- investigational
- investigative
- investigator
- investigatorial
- investigatory
- investiture
- investment