dár

See also: Appendix:Variations of "dar"

Irish

dár (triggers lenition; used with regular past tense verbs)

Contraction of de + ar: of/from which/whom
- 1899, Franz Nikolaus Finck, Die araner mundart, volume II (overall work in German), Marburg: Elwert’sche Verlagsbuchhandlung, page 64:
  ḱē gə rø šē ān ȳstə, xivnə šē əŕ x ilə ryd, dār xuələ šē.
  [Cé go raibh sé an-aosta, chuimhnigh sé ar chuile rud dár chuala sé.]
  Although he was very old, he remembered everything of which he heard.
Contraction of do + ar: to/for which/whom
gach díol dár fhulaing sé ― every treatment that he endured

dár (triggers eclipsis)

Contraction of de + ár.
beagán dár muintir ― a few of our people
Contraction of do + ár.
gan aon dár mbuaireamh ― with no one to trouble us

This contraction is obligatory; that is, *de/do ar/ár never appears uncontracted.

Irish preposition contractions

Basic form	Contracted with							Copular forms
Basic form	an (“the sg”)	na (“the pl”)	mo (“my”)	do (“your”)	a (“his, her, their; which (present)”)	ár (“our”)	ar (“which (past)”)	(before consonant)	(present/future before vowel)	(past/conditional before vowel)
de (“from”)	den	de na desna*	de mo dem*	de do ded, det	dá	dár		dar	darb	darbh
do (“to, for”)	don	do na dosna*	do mo dom*	do do dod, dot	dá	dár		dar	darb	darbh
faoi (“under, about”)	faoin	faoi na	faoi mo	faoi do	faoina	faoinár	faoinar		faoinarb	faoinarbh
i (“in”)	sa, san	sna	i mo im*	i do id, it	ina	inár	inar		inarb	inarbh
le (“with”)	leis an	leis na	le mo lem*	le do led, let	lena	lenár	lenar		lenarb	lenarbh
ó (“from, since”)	ón	ó na ósna*	ó mo óm*	ó do ód, ót	óna	ónár	ónar		ónarb	ónarbh
trí (“through”)	tríd an	trí na	trí mo	trí do	trína	trínár	trínar		trínarb	trínarbh
*Dialectal.