ecto- root words — words with the ecto- root

The root ecto- comes from Greek ektos, meaning outside, external. 18 words in Dendril are built from it, including ectoblast, ectoderm, ectoenzyme, ectogenesis, ectogenous, ectomere, ectomorph, ectomorphic, ectomorphies, ectomorphy, ectoparasite, ectophyte. Dendril shows them on a free interactive word map — no signup, no ads.

Words that use the ecto- root

Explore words with ecto- — words containing the ecto- root and sharing its sense of "outside, external". Examples include ectoblast, ectoderm, ectoenzyme, ectogenesis, ectogenous, ectomere, ectomorph, ectomorphic, ectomorphies, ectomorphy, ectoparasite, ectophyte. Click any word to see its own roots, definition, and related words.

What does ecto- mean?

The ecto- root means outside, external, from Greek ektos. Recognizing it helps you decode and remember the many English words built on this root.