altach

See also: Altach

Irish

Etymology 1

From alt (“joint, knot”) +‎ -ach +‎ [Term?] (adjectival suffix).

Adjective

altach (genitive singular masculine altaigh, genitive singular feminine altaí, plural altacha, comparative altaí)

1. articulate, jointed

   Antonym: neamh-altach

2. knotty, gnarled
3. undulating (of road)
4. wavy (of hair)

Declension

Declension of altach

Positive	singular		plural
	masculine	feminine	strong noun	weak noun
nominative	altach	altach	altacha
vocative	altaigh		altacha
genitive		altaí	altacha	altach
dative	altach	altach; altaigh (archaic)	altacha
Comparative	níos altaí
Superlative	is altaí

Derived terms

• bus altach m (“bendy bus”)
• leoraí altach m (“articulated lorry, semi”)
• neamh-altach (“unjointed, inarticulate”, adjective)
• roth altach m (“caterpillar wheel”)

Etymology 2

From alt (“alto”) +‎ -ach (adjectival suffix).

Adjective

altach (genitive singular masculine altaigh, genitive singular feminine altaí, plural altacha, not comparable)

1. (music) alto

Declension

Declension of altach

Positive	singular		plural
	masculine	feminine	strong noun	weak noun
nominative	altach	altach	altacha
vocative	altaigh		altacha
genitive		altaí	altacha	altach
dative	altach	altach; altaigh (archaic)	altacha
Comparative	(not comparable)
Superlative	(not comparable)

Derived terms

• an eochair altach f (“alto clef”)

Mutation

Mutated forms of altach

radical	eclipsis	with h-prothesis	with t-prothesis
altach	n-altach	haltach	not applicable

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

Further reading

• Ó Dónaill, Niall (1977), “altach”, in Foclóir Gaeilge–Béarla, Dublin: An Gúm, →ISBN
• de Bhaldraithe, Tomás (1959), “altach”, in English-Irish Dictionary, An Gúm
• “altach”, in New English-Irish Dictionary, Foras na Gaeilge, 2013–2025