castan

See also: castán, ĉastan, and častan

Romanian

Borrowed from Latin castaneus (19th century), possibly earlier via Ancient Greek κᾰ́στᾰνᾰ (kắstănă). The Aromanian (cãstãnj) and Megleno-Romanian equivalents of the word are likely directly inherited from Latin.

castan m (plural castani)

	indefinite	definite	indefinite	definite
	singular		plural
nominative-accusative	castan	castanul	castani	castanii
genitive-dative	castan	castanului	castani	castanilor
vocative	castanule		castanilor

“castan”, in DEX online—Dicționare ale limbii române (Dictionaries of the Romanian language) (in Romanian), 2004–2025

From Old Irish castán (compare modern Irish castán), from Latin castanea or Old French chastaigne (modern French châtaigne), with influence from the native suffix -án.

castan m (genitive singular castain, plural castanan)

Mutation of *castan*
radical	lenition
castan	chastan

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

Edward Dwelly (1911), “castan”, in Faclair Gàidhlig gu Beurla le Dealbhan [The Illustrated Gaelic–English Dictionary]‎^[1], 10th edition, Edinburgh: Birlinn Limited, →ISBN
Gregory Toner, Sharon Arbuthnot, Máire Ní Mhaonaigh, Marie-Luise Theuerkauf, Dagmar Wodtko, editors (2019), “castán”, in eDIL: Electronic Dictionary of the Irish Language

castan f (plural castanau)

Mutated forms of *castan*
radical	soft	nasal	aspirate
castan	gastan	nghastan	chastan

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

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