Where does “teasdíonach” come from?

teasdíonach (Irish) comes from Irish teas, from Old Irish tess, from Proto-Celtic texstus, from Proto-Indo-European tep- — to be warm, be hot.

teasdíonach (Irish): insulating, heatproof, heat-resistant

Definitions

  1. insulating, heatproof, heat-resistant

Ancestry of “teasdíonach”, step by step

teasdíonach traces back through two separate lines of ancestry.

via Irish teas

StepLanguageWordMeaning
1Irishteasheat, warmth; passion; feverishness
2Old Irishtessheat, warmth
3Proto-Celtictexstusheat, warmth
4Proto-Indo-Europeantep-to be warm, be hot

via Irish díonach

StepLanguageWordMeaning
1Irishdíonachprotective; impermeable, proof
2Old Irishdínachprotecting, protected
Every word from Proto-Indo-European tep- →Every word from Proto-Celtic texstus →Every word from Old Irish tess →