Latin

in-

in, into, on, upon

Forms

in-
im- — Used before b, m, or p in Latin.
il- — Used before l in Latin.
ir- — Used before r in Latin.
en- — Developed in French in some words later borrowed into English.

Origin

Reconstructed Proto-Indo-European *en, ‘in.’

Note

Identical spellings can hide two different prefixes: this one indicates position or direction, while the other means ‘not.’

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verb

inoculate

in-AH-kyoo-layt/ɪˈnɑːkjuleɪt/

To administer material that builds protection against disease.

The clinician inoculates the man to protect him against disease.

An older man receives a vaccine injection in his exposed upper arm from an older female clinician, shown in a tight, uncluttered clinical vignette.

Etymology

inLatinin, into, on, upon

+oculLatineye

+ateLatinhaving or having undergone something

An “eye” here was a plant bud: inoculating originally meant grafting a bud into another plant. This image of implantation transferred to introducing disease material into the body to produce immunity.

In context

TVUP74:32

some protection is better than no protection at all and considering that you have chinese vaccines that have been used to inoculate frontliners in brazil 12 000 of them

Webinar #42 | “May Mga Allergy Ako: COVID-19 Vaccine- SAFE BA?”

More examples

The nurse inoculates children against measles.
Travelers should be inoculated against yellow fever before visiting certain regions.
Learning to check sources helps inoculate readers against misinformation.

Forms

inoculate · inoculates · inoculated · inoculating

inoculation noun — Administration of material to protect against disease.

Similar words

vaccinate: Specifically means administering a vaccine rather than other protective material.
immunize: Emphasizes achieving immunity, not simply administering the protective material.