Celticist

[kel-tuh-sist, sel-]

noun

an expert in Celtic languages or culture.

Also Celt·ist [kel-tist, sel-] /ˈkɛl tɪst, ˈsɛl-/, Kelt·i·cist [kel-tuh-sist] /ˈkɛl tə sɪst/.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019