alcaide
/alˈkaide/ · B2 · noun · mf
palace
🏰 al-caide = Arabic al-qāʾid, 'the leader', so the castle's commander and warden
From Arabic al-qāʾid, 'the leader'. The al- is the Arabic 'the', and caide sounds like 'kai-day'. Long ago the alcaide commanded a castle's defense, and later the title came to mean a prison warden.