Broad & Wide

Words for broad, wide and related things in Celtic languages.

An trá mór

Proto-Celtic *ɸlitanos = broad, wide
Gaulish litana = broad, wide
Old Irish (Goídelc) lethan [l͈ʲeθan] = broad, wide
Middle Irish (Gaoidhealg) lethan, = broad, wide, wide-spread
leithet, leithne = breadth, width
lethaid, lethad = speads out, extends
Irish (Gaeilge) leathan [ˈl̠ʲahənˠ] = broad, wide, extensive
leathanaigeanta = broad-minded
leathanduilleach = broad-leaved, broad-brimmed
leathanghiallach = square-jawed
leathanghuailleach = broad- / square-shouldered
leathanas = wide extent, wideness
leathnú = widening, expension, extension
Scottish Gaelic (Gàidhlig) leathann [l̪ʲɛhən̪ˠ] = broad, wide, extensive
bann-leathann = broadband
aimhleathan [ãĩl̪ʲan] = narrow
cas-leathann = broad-footed, webbed, web-footed
Manx (Gaelg) lhean = wide, sheet, sweeping, flat of nose, extensive, broad, full (of chin)
lheanagh = broad, flattening
bann lhean = broadband
beeal lhean = wide-mouthed, yawning (chasm)
lhean cheeillagh = square-jawed
Proto-Brythonic *lɨdan [lɨˈdan] = broad, wide
Middle Welsh (Kymraec) litan, lledan, llydan = broad, wide
llydany = to widen
llydander, lledander = breadth, width
Welsh (Cymraeg) llydan [ˈɬədan] = broad, wide, long or wide (stride); sturdy, stout; extensive, spacious, plentiful, numerous
llydanaf, llydanu = to widen, make/become wide(r), enlarge, dilate
llydander, lledander = breadth, width, broadness, latitude, amplitude, extent, latitude
llydanedd, lledanedd = breadth, broadness, extent
Middle Cornish (Cernewec) ledan [‘lɛdan] = broad, wide, ample, spacious, extensive
ledanles = plantain
Cornish (Kernewek) ledan [‘lɛdan] = broad, wide, widely
ledandewlel = broadcast
ledanhe = to widen
bond ledan = broadband
Old Breton letan, litan = broad, wide
Middle Breton (Brezonec) ledan = broad, wide
ledañ, lediñ, ledek = to extend, spread, expand
ledanaat = to enlarge
ledanded = width, scope, calibre
Breton (Brezhoneg) ledan [ˈleː.dãn] = wide, broad
ledanded = width, scope, calibre
ledander = width, breadth, wideness

From Proto-Indo-European *pl̥th₂-enos (wide, broad), from *pleth₂- (flat) [source].

The Welsh name for Brittany, Llydaw, comes from the same roots, via the Old Welsh Litau, the Proto-Brythonic *Llɨdaw (continent, mainland [Europe], Brittany), the Proto-Celtic *ɸlitawī (country, earth) and the PIE *pl̥th₂éwih₂ (country). The Old English word Lid-wiccas (Breton people, Brittany), as does the old French name for Brittany, Létavie [source].

Some English words from the same roots include field, flan, flat, plaza, plantain, plate, plateau [source].

Words marked with a * are reconstructions.

Sources: Wiktionary, Am Faclair Beag, Online Manx Dictionary,, eDIL – Electronic Dictionary of the Irish Language, In Dúil Bélrai English – Old Irish glossary, Geiriadur Prifysgol Cymru, Gerlyver Kernewek, Dictionaire Favereau, TermOfis, English – ProtoCeltic WordList (PDF), Etymological Dictionary Of Proto Celtic

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