epi-

American  

1. a prefix occurring in loanwords from Greek, where it meant “upon,” “on,” “over,” “near,” “at,” “before,” “after” (epicedium; epidermis; epigene; epitome ); on this model, used in the formation of new compound words (epicardium; epinephrine ).

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epi- British  

prefix

1. on; upon; above; over

   epidermis

   epicentre

2. in addition to

   epiphenomenon

3. after

   epigenesis

   epilogue

4. near; close to

   epicalyx

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Etymology

Origin of epi-

< Greek, prefixal use of epí, preposition and adv.

Example Sentences

Unauthorized immigrants pay billions of dollars in taxes and contribute billions more to the country’s economy, the EPI adds.

From MarketWatch

By contrast, the average hourly wage, according to data from EPI, has risen only 50% — to $34.99 in 2025, also adjusted for inflation — over that same half-century period.

From MarketWatch

Elise Gould, a senior economist at the Economic Policy Institute, a nonprofit think tank, gives an example using data from EPI’s family budget calculator.

From MarketWatch

For a family with children ages 4, 8, 12 and 16, EPI estimates the annual cost of child care in the D.C. area at about $37,000, even more than the estimated $31,000 in housing expenses.

From MarketWatch

Families who don’t earn enough might have to “give up on some essentials,” said Elise Gould, EPI’s senior economist.

From MarketWatch