endo-

1. a combining form meaning “within,” used in the formation of compound words:

   endocardial.

endo-

combining_form

1. inside; within

   endocrine

endo–

1. A prefix meaning “inside,” as in endoskeleton.

Word History and Origins

Origin of endo-¹

< Greek, combining form of éndon within; cognate with Old Irish ind-, OL endo- in, on

Word History and Origins

Origin of endo-¹

from Greek, from endon within

Example Sentences

On the other hand, endo- and peri-carditis are excessively rare.

From Project Gutenberg

Purpura rheumatica never seems to result in endo- or pericarditis.

From Project Gutenberg

There are other instances of cartilaginous endo-skeleton in groups other than the Vertebrata.

From Project Gutenberg

Like the worm-aneurism itself, atheroma of the abdominal arteries arises from a circumscribed acute and subacute endo-arteritis.

From Project Gutenberg