compañeiro

From Old Galician-Portuguese companneiro (13th century, Cantigas de Santa Maria), from compaña (“troop, army”) +‎ -eiro (“-er”); from Late Latin companiō, a calque from Germanic: compare Gothic 𐌲𐌰𐌷𐌻𐌰𐌹𐌱𐌰 (gahlaiba, “messmate”), Old High German galeipo, from Proto-Germanic *ga- (“together”) + *hlaibaz (“loaf, bread”).

compañeiro m (plural compañeiros, feminine compañeira, feminine plural compañeiras)

companion, comrade, colleague
- 1387, A. López Ferreiro, editor, Galicia Histórica. Colección diplomática, Santiago: Tipografía Galaica, page 417:
  It. mando a meus señores et compañeyros os cardeas que ora sson a cada huun dez mrs. que me rrecomenden en suas oraçoes
  Item, I bequeath my lords and colleagues, the cardinals [of Saint James] that are at the momment, ten maravedis each one for them to commend me in their prayings
spouse; domestic partner

Ernesto Xosé González Seoane, María Álvarez de la Granja, Ana Isabel Boullón Agrelo (2006–2022) “companneiro”, in Dicionario de Dicionarios do galego medieval (in Galician), Santiago de Compostela: Instituto da Lingua Galega
"compañeiro" in Xavier Varela Barreiro & Xavier Gómez Guinovart: Corpus Xelmírez - Corpus lingüístico da Galicia medieval. SLI / Grupo TALG / ILG, 2006-2016.
Antón Luís Santamarina Fernández, editor (2006–2013), “compañeiro”, in Dicionario de Dicionarios da lingua galega [Dictionary of Dictionaries of the Galician language] (in Galician), Santiago de Compostela: Instituto da Lingua Galega
Antón Luís Santamarina Fernández, Ernesto Xosé González Seoane, María Álvarez de la Granja, editors (2003–2018), “compañeiro”, in Tesouro informatizado da lingua galega (in Galician), Santiago de Compostela: Instituto da Lingua Galega
Rosario Álvarez Blanco, editor (2014–2024), “compañeiro”, in Tesouro do léxico patrimonial galego e portugués (in Galician), Santiago de Compostela: Instituto da Lingua Galega, →ISSN