járnhlið ‘iron gates’: The gates of hell are typically described as being made of brass, in reference to Ps. CVI.16 (quia contrivit portas aereas et vectes ferreos confregit ‘because he hath broken gates of brass, and burst iron bars’, cf. Isa. XLV.2). The only other occurrence of the word cited by dictionaries is the translation of Acts XII.10 in Postola Sögur (Unger 1874, 78); it also occurs in Oddur Gottskálksson’s translation of the same verse (Sigurður Nordal 1933).