# clais
## Irish
### Etymology

From Middle Irish clas.

### Pronunciation

* (Munster, Connacht) IPA: /kl̪ˠaʃ/, /klˠaʃ/
* (Ulster) IPA: /klˠæʃ/, /kl̪ˠæʃ/

### Noun

clais f (genitive singular claise, nominative plural claiseanna)
* groove
* furrow
* ditch, trench
    Synonyms: díog, trinse
* channel
* (vulgar) beaver, slit, gash (vulva)

#### Declension

bare forms
case
singular
plural
nominative
clais
claiseanna
vocative
a chlais
a chlaiseanna
genitive
claise
claiseanna
dative
clais
claiseanna
forms with the definite article
case
singular
plural
nominative
an chlais
na claiseanna
genitive
na claise
na gclaiseanna
dative
leis an gclais don chlais
leis na claiseanna :

### Mutation

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

### References

* ↑ Gregory Toner, Sharon Arbuthnot, Máire Ní Mhaonaigh, Marie-Luise Theuerkauf, Dagmar Wodtko, editors (2019), “clas”, in eDIL: Electronic Dictionary of the Irish Language
* ↑ Ó Sé, Diarmuid (2000) Gaeilge Chorca Dhuibhne [The Irish of Corkaguiny] (in Irish), Institiúid Teangeolaíochta Éireann [Linguistics Institute of Ireland], →ISBN, section 95, page 61
* ↑ Finck, F. N. (1899) Die araner mundart [The Aran Dialect] (in German), volume II, Marburg: Elwert’sche Verlagsbuchhandlung, page 154
* ↑ Quiggin, E. C. (1906) A Dialect of Donegal, Cambridge University Press, § 353, page 121

### Further reading

* Ó Dónaill, Niall (1977) “clais”, in Foclóir Gaeilge–Béarla, Dublin: An Gúm, →ISBN
* Dinneen, Patrick S. (1904) “clais”, in Foclóir Gaeḋilge agus Béarla, 1st edition, Dublin: Irish Texts Society, page 144
* de Bhaldraithe, Tomás (1959) “clais”, in English-Irish Dictionary, An Gúm
* “clais”, in New English-Irish Dictionary, Foras na Gaeilge, 2013-2025

## Scottish Gaelic
### Etymology

From Middle Irish clas.

### Pronunciation

* IPA: /kʰl̪ˠaʃ/

### Noun

clais f (genitive singular claise, plural claisean)
* groove, rut
* furrow
* ditch, trench
* drain
* gutter
* channel

#### Derived terms

* sruth-chlais (“canal”)

### Mutation

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

### References

* ↑ Gregory Toner, Sharon Arbuthnot, Máire Ní Mhaonaigh, Marie-Luise Theuerkauf, Dagmar Wodtko, editors (2019), “clas”, in eDIL: Electronic Dictionary of the Irish Language

### Further reading

* Gregory Toner, Sharon Arbuthnot, Máire Ní Mhaonaigh, Marie-Luise Theuerkauf, Dagmar Wodtko, editors (2019), “1 clas”, in eDIL: Electronic Dictionary of the Irish Language

## Welsh
### Etymology

Compare Old Irish clas.

### Pronunciation

* IPA: /klai̯s/
** (South Wales, colloquial also) IPA: /klai̯ʃ/
* Rhymes: -ai̯s

### Noun

clais m (plural cleisau or cleisiau)
* bruise, contusion, weal
    Synonym: briw
** break, streak (esp. of day or dawn)
** lividly coloured spot
** streakiness (of marble)
* groove, rut, fissure
    Synonyms: agen, rhigol, rhych
** ditch, trench, rivulet
    Synonyms: ffos, ffrwd, nant
** lee (side of a ship or mountain sheltered from the wind)
* (botany) One of several flowering plants, including:
** clary (Salvia)
    Synonym: clari
** field scabious (Knautia arvensis)
    Synonym: clafrllys y maes
** devil’s bit scabious (Succisa pratensis)
    Synonym: tamaid y cythraul
** dandelion (Taraxacum)
    Synonym: dant y llew

#### Derived terms

* clais dwbl (“garden clary”)
* clais Mair (“wild clary”)
* clais moch (“garden clary”)
* clais y dydd (“break of day”)
* clais y wawr (“break of dawn”)
* clais yr hydd (“dog's mercury”)
* goglais (“tickle”)

### Mutation

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

### References

* R. J. Thomas, G. A. Bevan, P. J. Donovan, A. Hawke et al., editors (1950–present), “clais”, in Geiriadur Prifysgol Cymru Online (in Welsh), University of Wales Centre for Advanced Welsh & Celtic Studies