Where does “book azul” come from?

book azul (Portuguese) comes from Portuguese azul, from Old Portuguese azur, from Arabic لَازُوَرْد, from Persian لاجورد — lapis lazuli; azure, lapis lazuli.

book azul (Portuguese): a secretive catalog of male models involved in high-end prostitution

Definitions

  1. a secretive catalog of male models involved in high-end prostitution

Ancestry of “book azul”, step by step

book azul traces back through two separate lines of ancestry.

via Portuguese azul

StepLanguageWordMeaning
1Portugueseazulblue
2Old Portugueseazurazure, blue
3Arabicلَازُوَرْدlapis lazuli, azure
4Persianلاجوردlapis lazuli; azure, lapis lazuli

via Portuguese book

StepLanguageWordMeaning
1Portuguesebook—
Every word from Persian لاجورد →Every word from Arabic لَازُوَرْد →Every word from Old Portuguese azur →