wherethan

where +‎ than

• (Received Pronunciation) enPR: hwârdhănʹ, IPA^(key): /ʍɛəˈðæn/

wherethan

1. (rare) Than which.
   • Sir Richard Francis Burton, One Thousand and One Nights

     Then Miriam wept passing sore wherethan naught could be more, making sure of separation, and cried to the druggist's wife, “O my mother, said I not to thee that my lord Nur al-Din had been tricked into selling me? […]

• heathwren