plánach

Irish

Etymology

From plána (“flat surface, plane”) +‎ -ach (adjectival suffix).

Adjective

plánach (genitive singular masculine plánaigh, genitive singular feminine plánaí, plural plánacha, comparative plánaí)

1. plane, planar

Declension

Declension of plánach

	Singular		Plural (m/f)
Positive	Masculine	Feminine	(strong noun)	(weak noun)
Nominative	plánach	phlánach	plánacha; phlánacha²
Vocative	phlánaigh		plánacha
Genitive		plánaí	plánacha	plánach
Dative	plánach; phlánach¹	phlánach; phlánaigh (archaic)	plánacha; phlánacha²
Comparative	níos plánaí
Superlative	is plánaí

¹ When the preceding noun is lenited and governed by the definite article.
² When the preceding noun ends in a slender consonant.

Derived terms

• péist phlánach (“flatworm”)

Mutation

Irish mutation
Radical	Lenition	Eclipsis
plánach	phlánach	bplánach
Note: Some of these forms may be hypothetical. Not every possible mutated form of every word actually occurs.

References

• Ó Dónaill, Niall (1977) “plánach”, in Foclóir Gaeilge–Béarla, Dublin: An Gúm, →ISBN