that constitutes the origin of subsequent facts andphenomena
causamadre ―root cause
2020 October 1, Massimo Basile, “Misogini, anti-immigrati, suprematisti: chi sono i Proud Boys sdoganati da Trump [Misogynists, suprematists: who are the Proud Boys legitimated by Trump]”, inla Repubblica[1]:
Si può far parte a vari livelli, da urlare in pubblico slogan pro occidente a farsi tatuare il nome Proud Boys fino alla provamadre: partecipare a scontri.
You can be a part of it at various levels, from yelling pro-Western slogans in public to tattooing the name Proud Boys all the way to theprincipal test: participating in clashes.
c.1300, R. Martínez López, editor,General Estoria. Versión gallega del siglo XIV, Oviedo: Archivum, page183:
et nõ colle as agoas nẽ as torna aamadre ata quea noyte nõ aja as oras ygoães cõ odia. Et em esta rrazõ sobre este lugar da fonte do Nylo achamos que ouverõ [hũus] dos auçiaos hũa créénça vãa: queo cresçer da fonte do Nylo donde el sal por las terras et rrega as herdades, diziam que aquel cresçer quelle [vyña] daquelas neves de Etiopia
and [the Nile] doesn't take the waters nor return them to theriverbed till the night has its hours equal to that of the day. Because of this, about this place of the source of the Nile, we find that some of the old scholars had a vain belief: that the flooding of the Nile's source, where it springs from the earth and waters the fields, was due to the snows of Ethiopia
Xavier Varela Barreiro, Xavier Gómez Guinovart (2006–2018) “madre”, inCorpus Xelmírez - Corpus lingüístico da Galicia medieval (in Galician), Santiago de Compostela:Instituto da Lingua Galega