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Unit One: 1 | 2

Unit Two: 1 2 3 4 5 6

Unit Three: Lesson Index

Spelling and Pronunciation - Grammar

Commonly Confused Words - Common phrases

History - Similar English words -

Irish Studies portal at Wikiversity


As in many other languages, Irish adds prefixes to words to create new words. If you become familiar with the prefixes below, you may double your [vocabulary]! Note that some prefixes are separated from the base word by a [hyphen], and some prefixes cause lenition.

ain-   in-, un-, not-, over-
Examples: ceart (right) becomes aincheart (unjust), fios (knowledge) becomes ainfhiosracht (over-curious).
an-   very
Example: maith (good) becomes an-mhaith (very good).
ath-   re-
Example: déan (do, make) becomes athdéan (redo, remake).
ceann-   chief, main, -headed
Example: litir (letter) becomes ceannlitir (capital letter).
comh-   mutual, joint
Example: ceol (music) becomes comhcheol (harmony).
dea-   good, well
Example: scéal (news, story) becomes dea-scéal (piece of good news).
dearg-   red-, real, utter
Example: gráin (hatred) becomes dearg-ghráin (intense hatred).
dé-   bi-, di-, two-
Example: taobh (side) becomes déthaobhach (bilateral).
di-   de-, dis-, in-, un-
Example: scéal (news, story) becomes díscéil (uninformative).
do-   in-, un-, not-
Example: déanta (done, complete) becomes dodhéanta (impossible, hard to do),
il-   many, multi-
Example: eochair (key) becomes ileochair (master key).
in-   capable of
Example: creidte (believed) becomes inchreidte (believable).
lán-   total
Example: cead (permission) becomes lánchead (full permission).
réamh-   pre-, preliminary
Example: feiceáil (seeing) becomes reamhfheiceáil (foresight).
mion-   small, micro-
Example: insint (telling) becomes mioninsint (detailed report).
sár-   exceeding, ultra-
Example: riail (') becomes sár-riail (golden rule).
ró-   over-
Example: minic (often) becomes rómhinic (too often).
so-   easy
Example: briste (broken) becomes sobhriste (fragile, easily broken).