English word anti- comes from Proto-Indo-European *h₂ent-
| Dictionary entry | Language | Definition |
|---|---|---|
| *h₂ent- | Proto-Indo-European (ine-pro) | front, front side |
| ἀντί | Ancient Greek (grc) | |
| anti- | English (eng) | (immunology) That reacts with immunoglobins found in the specified animal.. Against, hostile to.. Contrasting with the norm.. Counteracting, neutralizing.. Opposite of, reverse.. Physically opposite: applied to mountain ranges.. Related to antiparticles. |