köken: From Middle High German base, from Old High German basa, from Proto-West Germanic *baswā, from Proto-Germanic *baswǭ (“father's sister; paternal aunt”). Compare Saterland Frisian Bääsje (“grandmother”), Dutch baas (“master; boss”). More at boss.
köken: From the form ξάδελφος (xádelfos), from εξάδελφος (exádelfos), from Koine Greek ἐξάδελφος (exádelphos), from Ancient Greek ἐξ- (ex-) + ἀδελφός (adelphós).
one's cousin (may be spelled in kanji to indicate the gender and relationship with the person in question): · 従兄弟: a male cousin · 従姉妹: a female cousin
köken: ⟨ito₁ko₁⟩ → */itʷokʷo/ → /itoko/ Cognate with and by extension of Old Japanese いとこ (ito₁ko₁, “close, familial, or beloved person”). Ultimately from Proto-Japonic *itoko. First attested in the Kojiki of 712 CE.
köken: Sino-Korean word from 四寸, from 四 (“four”) + 寸 (“degree of kinship”). A degree of kinship is the relationship between a parent and a child, so a cousin is four degrees of kinship away from the speaker (speaker to parent, parent to grandparent, grandparent to uncle, uncle to first cousin).
köken: From French cousin, from Latin consobrinus. Caused a semantic shift in the words syssling and brylling, formally meaning ”cousin” (on mother’s and father’s side, respectively), to their modern meanings second cousin and third cousin.
köken: Inherited from Latin (cōnsobrīnus) vērus (“true cousin”), from Proto-Indo-European *weh₁ros, from *weh₁- (“true”). Cf. Aromanian ver and cusurin. For the semantic evolution compare Spanish and Portuguese primo.