-i-connective

Connective or quasi-connective Latin -i-, being the stem-vowel, as in omni-vorus, or a weakened representative thereof, as in grani-vorus (grano-), or herbi-vorus (herba-), or merely connective, as in gramin-i-vorus (gramin-); so uni-formis, auri-fer, terri-genus, pac-i-ficus. So in many English words taken from Latin directly or through French, and in modern words formed on their analogy, e.g. amœbi-form, hydri-form (also hydraform, hydræform), seti-form, etc.