ex·ine 
(ĕksēn′, -sīn′)
(ĕksēn′, -sīn′)n.
The outer layer of the wall of a spore or pollen grain.
[EX(O)- + Greek īs, īn-, tendon; see wei- in the Appendix of Indo-European roots.]
- Indo-European root: dhugəter-
- Indo-European root: dhwer-
- Indo-European root: dhē-
- Indo-European root: dhē(i)-
- Indo-European root: dhēs-
- Indo-European root: dhīgw-
- Indo-European root: dlegh-
- Indo-European root: dn̥ghū-
- Indo-European root: dus-
- Indo-European root: dwo-
- Indo-European root: dyeu-
- Indo-European root: dā-
- Indo-European root: dō-
- Indo-European root: ed-
- Indo-European root: eg
- Indo-European root: eghs
- Indo-European root: egwh-
- Indo-European root: ei-
- Indo-European root: eis-
- Indo-European root: ekwo-
- Indo-European root: el-
- Indo-European root: em-
- Indo-European root: en
- Indo-European root: epi
- Indo-European root: er-