# teagasc
## Irish
### Alternative forms

* teagas, tionchosc
* teagasg, teagosc, teagosg, teagusg, tionchosg (obsolete)

### Pronunciation

* (Munster) IPA: /ˈtʲaɡəsˠk/
* (Connacht) IPA: /ˈtʲaɡəsˠ/ (corresponding to the form teagas)
* (Ulster) IPA: (South Donegal) /ˈtʲɨɡəsˠk/ (as if spelled tiogasc), (Central Donegal) /ˈtʲɨɣəsˠk/ (as if spelled tioghasc), (North Donegal) /ˈtʲɛɡəsˠk/
The form teagas, with the final c dropped, is due partly to metanalysis of the phrase teagasc Críostaí (“catechism”), in which the final /k/ of the first word is assimilated to the initial /c/ of the second word, and partly to the influence of the suffix -as.

### Etymology 1

From Middle Irish tecosc, verbal noun of Old Irish do·inchoisc from to- + in- + com- + the root of seichid. Cognate with Scottish Gaelic teagasg.

#### Noun

teagasc m (genitive singular teagaisc, nominative plural teagasca)
* verbal noun of teagasc
* teaching, doctrine
    teagasc na hEaglaise ― the teaching/doctrine of the Church
* instruction, tuition
* precept
* moral (moral significance or practical lesson)
* (literary) incantation

##### Declension

bare forms
case
singular
plural
nominative
teagasc
teagasca
vocative
a theagaisc
a theagasca
genitive
teagaisc
teagasc
dative
teagasc
teagasca
forms with the definite article
case
singular
plural
nominative
an teagasc
na teagasca
genitive
an teagaisc
na dteagasc
dative
leis an teagasc don teagasc
leis na teagasca :

##### Synonyms

* (teaching, doctrine): foirceadal
* (moral): múineadh
* (incantation): briocht

##### Derived terms

* inteagaisc
* mionteagasc
* sotheagaisc
* teagasc Críostaí (“Christian doctrine, catechism”)
* teagasc seanchaite (“shibboleth”)
* teagascach

### Etymology 2

From Middle Irish tecoiscid, denominal from etymology 1.

#### Verb

teagasc (present analytic teagascann, future analytic teagascfaidh, verbal noun teagasc, past participle teagasctha)
* to teach, instruct, tutor
    Synonym: múin

##### Conjugation

| | | singular | singular | singular | plural | plural | plural | relative | autonomous |
| | | first | second | third | first | second | third | relative | autonomous |
| indicative | present | teagascaim | teagascann tú; teagascair$^†$ | teagascann sé, sí | teagascaimid | teagascann sibh | teagascann siad; teagascaid$^†$ | a theagascann; a theagascas / a dteagascann* | teagasctar |
| indicative | past | theagasc mé; theagascas | theagasc tú; theagascais | theagasc sé, sí | theagascamar; theagasc muid | theagasc sibh; theagascabhair | theagasc siad; theagascadar | a theagasc / ar theagasc* | teagascadh |
| indicative | past habitual | theagascainn / dteagascainn‡‡ | theagasctá / dteagasctá‡‡ | theagascadh sé, sí / dteagascadh sé, sí‡‡ | theagascaimis; theagascadh muid / dteagascaimis‡‡; dteagascadh muid‡‡ | theagascadh sibh / dteagascadh sibh‡‡ | theagascaidís; theagascadh siad / dteagascaidís‡‡; dteagascadh siad‡‡ | a theagascadh / a dteagascadh* | theagasctaí / dteagasctaí‡‡ |
| future | future | teagascfaidh mé; teagascfad | teagascfaidh tú; teagascfair$^†$ | teagascfaidh sé, sí | teagascfaimid; teagascfaidh muid | teagascfaidh sibh | teagascfaidh siad; teagascfaid$^†$ | a theagascfaidh; a theagascfas / a dteagascfaidh* | teagascfar |
| conditional | conditional | theagascfainn / dteagascfainn‡‡ | theagascfá / dteagascfá‡‡ | theagascfadh sé, sí / dteagascfadh sé, sí‡‡ | theagascfaimis; theagascfadh muid / dteagascfaimis‡‡; dteagascfadh muid‡‡ | theagascfadh sibh / dteagascfadh sibh‡‡ | theagascfaidís; theagascfadh siad / dteagascfaidís‡‡; dteagascfadh siad‡‡ | a theagascfadh / a dteagascfadh* | theagascfaí / dteagascfaí‡‡ |
| subjunctive | present | go dteagasca mé; go dteagascad$^†$ | go dteagasca tú; go dteagascair$^†$ | go dteagasca sé, sí | go dteagascaimid; go dteagasca muid | go dteagasca sibh | go dteagasca siad; go dteagascaid$^†$ | — | go dteagasctar |
| subjunctive | past | dá dteagascainn | dá dteagasctá | dá dteagascadh sé, sí | dá dteagascaimis; dá dteagascadh muid | dá dteagascadh sibh | dá dteagascaidís; dá dteagascadh siad | — | dá dteagasctaí |
| imperative | imperative | teagascaim | teagasc | teagascadh sé, sí | teagascaimis | teagascaigí; teagascaidh$^†$ | teagascaidís | — | teagasctar |
| verbal noun | verbal noun | teagasc | teagasc | teagasc | teagasc | teagasc | teagasc | teagasc | teagasc |
| past participle | past participle | teagasctha | teagasctha | teagasctha | teagasctha | teagasctha | teagasctha | teagasctha | teagasctha |
* indirect relative † archaic or dialect form ‡‡ dependent form used with particles that trigger eclipsis

##### Derived terms

* teagascóir

### Mutation

Note: Certain mutated forms of some words can never occur in standard Modern Irish. All possible mutated forms are displayed for convenience.

### References

* ↑ “teagasc”, in Historical Irish Corpus, 1600–1926, Royal Irish Academy
* ↑ Finck, F. N. (1899) Die araner mundart [The Aran Dialect] (in German), volume II, Marburg: Elwert’sche Verlagsbuchhandlung, page 294
* ↑ Mhac an Fhailigh, Éamonn (1968) The Irish of Erris, Co. Mayo: A Phonemic Study, Dublin Institute for Advanced Studies, section 130, page 31
* ↑ Quiggin, E. C. (1906) A Dialect of Donegal, Cambridge University Press, § 426, page 138
* ↑ Sommerfelt, Alf (1922) The Dialect of Torr, County Donegal, volume I: Phonology, Christiania [Oslo]: Videnskapsselskapet i Kristiania, section 32, page 15
* ↑ Lucas, Leslie W. (1979) Grammar of Ros Goill Irish Co. Donegal (Studies in Irish Language and Literature, Department of Celtic, Q.U.B.; vol. 5), Institute of Irish Studies, The Queen’s University of Belfast, page 302
* ↑ Mhac an Fhailigh, Éamonn (1968) The Irish of Erris, Co. Mayo: A Phonemic Study, Dublin Institute for Advanced Studies, section 344, page 146
* ↑ Gregory Toner, Sharon Arbuthnot, Máire Ní Mhaonaigh, Marie-Luise Theuerkauf, Dagmar Wodtko, editors (2019), “tecosc”, in eDIL: Electronic Dictionary of the Irish Language
* ↑ Gregory Toner, Sharon Arbuthnot, Máire Ní Mhaonaigh, Marie-Luise Theuerkauf, Dagmar Wodtko, editors (2019), “tecoiscid”, in eDIL: Electronic Dictionary of the Irish Language

### Further reading

* Dinneen, Patrick S. (1904) “teagasc”, in Foclóir Gaeḋilge agus Béarla, 1st edition, Dublin: Irish Texts Society, page 725
* Dinneen, Patrick S. (1904) “teagascaim”, in Foclóir Gaeḋilge agus Béarla, 1st edition, Dublin: Irish Texts Society, page 725
* Ó Dónaill, Niall (1977) “teagasc”, in Foclóir Gaeilge–Béarla, Dublin: An Gúm, →ISBN