lóstrego

• lústrigo

Attested since 1370. Uncertain etymology. Perhaps from Latin lūstrō (“I purify; I illuminate”) from Latin lūstrum (“sacrifice”); or rather, given the stressed vowel /o/, from Proto-Celtic *lowkstriko-, from Proto-Celtic *lowko- (“bright, light”): compare Welsh lluched (“lightning”) and North Catalan llaucet. Alternatively, deverbal from lostregar, and this irregularly from Latin *lūstricare. Ultimately from Proto-Indo-European *lewk- (“to shine”).

• IPA^(key):

lóstrego m (plural lóstregos)

1. lightning
2. flash of lightning

• apago, lustro, relampo

• lostregar (“to lightning”)

• Ernesto González Seoane, María Álvarez de la Granja, Ana Isabel Boullón Agrelo (2006–2022) “lostrego”, in Dicionario de Dicionarios do galego medieval (in Galician), Santiago de Compostela: ILG
• Xavier Varela Barreiro, Xavier Gómez Guinovart (2006–2018) “lóstrego”, in Corpus Xelmírez - Corpus lingüístico da Galicia medieval (in Galician), Santiago de Compostela: ILG
• “lóstrego” in Dicionario de Dicionarios da lingua galega, SLI - ILGA 2006–2013.
• “lóstrego” in Tesouro informatizado da lingua galega. Santiago: ILG.
• “lóstrego” in Álvarez, Rosario (coord.): Tesouro do léxico patrimonial galego e portugués, Santiago de Compostela: Instituto da Lingua Galega.

lóstrego m

1. (Galicia) lightning
   • 1370, Ramón Lorenzo, editor, Crónica troiana, page 392:

     ca a noyte foy moyto escura, et fezo trõos et lóstregos et uẽto moy forte, et chouj́a moy rrégeament.

     because the night was very dark, and there were thunder and lightning and a very strong wind, and it was raining heavily

• Galician: lóstrego

• Ernesto González Seoane, María Álvarez de la Granja, Ana Isabel Boullón Agrelo (2006–2022) “lostrego”, in Dicionario de Dicionarios do galego medieval (in Galician), Santiago de Compostela: ILG
• Xavier Varela Barreiro, Xavier Gómez Guinovart (2006–2018) “lóstrego”, in Corpus Xelmírez - Corpus lingüístico da Galicia medieval (in Galician), Santiago de Compostela: ILG