The wife of Ar-Gimilzôr who was the 23rd ruler of Númenor (S/268). She was a secret Elf-friend and raised her son Inziladûn to be faithful to the Valar. Her name has the same initial element as her son: inzil “flower”. The second element might be bêth “word”.
inzilbêthfeminine name. Flower-?word