就是這個稱作[姊夫].網圖資料分享:古羅馬考古驚見16公分棒狀物 專家推測:2千年前「姐夫」出土.“The Vindolanda phallus is 16cm long but, researchers say, was probably larger because archaeological wood is prone to shrinkage and warping.”The things they got up to on Hadrian’s Wall…
雖然"姊/姐"經常被混用.但在古代:姊:有血緣關係的親人.姐:無血緣的外人.-------------古時,稱成年男子為夫.形容身強體壯的成年男子為丈夫.妻子稱另一半為夫婿,甚至比較拍馬屁的稱為丈夫.姊夫這稱呼,多半也就這麼跟著出現.