Today we’re looking at the words for special, particular, different and related things in Celtic languages.

Words marked with an * are reconstructions.

Proto-Celtic	*ɸarekʷennom = extremity, end
Old Irish (Goídelc)	airchenn = certain, definite
Middle Irish (Gaoidhealg)	airchenn, airchend = certain, fixed, definite, prominent, leading, chaste, leader, chief
Irish (Gaeilge)	airchinneach = hereditary steward of church lands
Scottish Gaelic (Gàidhlig)	airchinneach = erenagh (monastic role)
Middle Welsh (Kymraec)	arpennic, arbennyc, arbennig, arbennic = principal, chief, main, foremost, supreme, excellent, wonderful, splendid, sacred, solemn, serious, chief, prince, leader, head arbenhicrỽyd = specialness, particularity, peculiarity arbennigyaỽl, arbenygaul = lord, chieftain, sovereign arbennedic = generous, noble
Welsh (Cymraeg)	arbennig [arˈbɛnɪɡ] = principal, chief, main, foremost, supreme, excellent, wonderful, splendid, sacred, solemn, serious, special, particular, peculiar, distinctive, specific, characteristic arbenig(i)aeth = speciality, expertise arbenigo = to make special, specify, denote, specialize arbenig(i)ol = special, particular, specific, distinct arbenigrwydd = specialness, particularity, peculiarity arbenigwr, arbenigydd = specialist, expert, authority
Middle Cornish (Cernewec)	arbennec, arbednec = usual, customary
Cornish (Kernewek)	arbennik, arbednik = distinctive, particular, special arbenigel = specialist arbeniger, arbenigores specialist arbenikter = specialism, speciality yn arbennik = especially
Middle Breton (Brezonec)	arbennik = soft, tender
Breton (Brezhoneg)	arbennik [ar.ˈbɛ.nːik] = special, specialized, expert arbennigour = specialist, expert arbennikaat = to specialize arbennikaat = specialization, expertise, specializing arbennikaet = specialized, competent arbennikadur = specialization, expertise, specializing

Etymology: from Proto-Celtic ɸare- (for(e)-) and *kʷennom (head) [source]. Words from the same Proto-Celtic roots include arpent (acre, arpent – an old French unit of area or length) in French [source].

Irish (Gaeilge)	ar leith, faoi leith [ɛɾʲˈl̠ʲɛh / fˠiːˈl̠ʲɛh] = apart, separate(ly), several, distinct, remarkable, special
Scottish Gaelic (Gàidhlig)	air leth = particular(ly), separate(ly), discrete(ly), individual(ly), apart, exceptional(ly)
Manx (Gaelg)	er lheh = special, specific, certain, distinctive, aloof, separate

Etymology: from Old Irish leth (side), from Proto-Celtic *letos or from Proto-Celtic *ɸletos (breadth, side). Words from the same Proto-Celtic roots include lled (breadth, width, part, half) in Welsh, led (wide, large, broad) in Breton, and les (breadth, width) in Cornish [source]. See the Halves and Sides Celtiadur post for more details.

Irish (Gaeilge)	speisialta [ˈsˠpʲɛʃiəl̪ˠt̪ˠə] = special speisialtacht = speciality speisialtóir = specialist speisialtóireacht = specializing, specialization
Welsh (Cymraeg)	sbesial = special, especially good

Etymology: from Middle English special(e) (exceptional, extraordinary, particular), from Old French especial (special, powerful, mighty), from Latin speciālis (specific), from speci(ēs) (kind, type, seeing, spectacle, appearance, display), from speciō (to observe, watch, look at), from Proto-Italic *spekjō (to observe, see), from Proto-Indo-European *spéḱyeti (to be looking at) [source].

Proto-Celtic	*sani = apart from *sanis = different
Old Irish (Goídelc)	sainredach = characteristic, peculiar
Middle Irish (Gaoidhealg)	sainredach, sainredaig, sunnarthach = peculiar or belonging to, particular, special, set apart, specific, definite
Irish (Gaeilge)	sonrach = particular, specific sonraigh = particularize, specify, define; to perceive, distinguish sonraíoch = noticeable, remarkable, peculiar, extraordinary, abnormal,grotesque sonraíocht = specification sonrú = specification, notice, perception
Scottish Gaelic (Gàidhlig)	sònraichte [sɔːnrɪçdʲə] = specific, specified, stipulated, certain, special, defined, allocated, assigned, excellent, noted
Manx (Gaelg)	sonraghey = to specify
Middle Welsh (Kymraec)	han = separation, divorce, different, other, (out) of, from
Welsh (Cymraeg)	hân = separation, divorce, different, other, (out) of, from
Middle Cornish (Cernewec)	hanys = from thee
Cornish (Kernewek)	ahanav = from me ahanas = from you (sg) ahanodho = from him ahanedhi = from her ahanan = from us ahanowgh = from you (pl) anedha = from them
Old Breton (Brethonoc)	han = outside of, other than, different from
Middle Breton (Brezonec)	han = outside of, other than, different from
Breton (Brezhoneg)	han = outside of, other than, different from

Etymology: from Proto-Indo-European *senH- (apart, without, for oneself). Words from the same roots possibly include sunder in English, zonder (without) in Dutch, sondern (to separate, sunder) in German, sönder (broken, out of order) in Swedish, senza (without) in Italian, sans (without) in French, sin (without) in Spanish [source].

Sources: Wiktionary, Etymological Dictionary Of Proto Celtic, In Dúil Bélrai English – Old Irish glossary, eDIL – Electronic Dictionary of the Irish Language, Teanglann.ie, Am Faclair Beag, An etymological dictionary of the Gaelic language, Fockleyreen: Manx – English Dictionary, Online Manx Dictionary, Gaelg Corpus, Geiriadur Prifysgol Cymru, Lexicon cornu-britannicum : a dictionary of the ancient Celtic language of Cornwall, Gerlyver Kernewek, Devri : Le dictionaire diachronique du breton, Geriafurch, TermOfis