Where does “Lughnasadh” come from?

Lughnasadh (English) comes from Irish Lughnasadh, from Old Irish Lugnasad, from Old Irish nasad, from Polish nasadzić, from Polish sadzić, from Proto-Slavic saditi, from Proto-Balto-Slavic *sōdī́ˀtei, from Proto-Indo-European sodéyeti — Creates transitive imperfective verbs from roots.

Lughnasadh (English): A Gaelic/Celtic holiday celebrated on the full moon nearest the midpoint between the summer solstice and autumnal equinox, during the time of the harvesting

Definitions

  1. A Gaelic/Celtic holiday celebrated on the full moon nearest the midpoint between the summer solstice and autumnal equinox, during the time of the harvesting

Ancestry of “Lughnasadh”, step by step

StepLanguageWordMeaning
1IrishLughnasadhSuperseded spelling of Lúnasa
2Old IrishLugnasadLammas
3Old Irishnasadfestival
4Polishnasadzićto plant many of something
5Polishsadzićto plant
6Proto-Slavicsaditito plant
7Proto-Balto-Slavic*sōdī́ˀteito set, to plant
8Proto-Indo-Europeansodéyetito set, to seat, to cause to sit
9Proto-Indo-European-éyetiForms causative imperfective verbs from roots;...
10Proto-Indo-European-yetiCreates transitive imperfective verbs from roots
Every word from Proto-Indo-European -yetiEvery word from Proto-Indo-European -éyetiEvery word from Proto-Indo-European sodéyeti