The Spanish word 'cocina' (meaning 'kitchen') comes from the Latin word 'coquina', which also meant 'kitchen'. 'Coquina' itself was formed from the Latin verb 'coquere' meaning 'to cook' combined with the noun-forming suffix '-ina'. Over time, as Latin evolved into Spanish, 'coquina' transformed into the modern Spanish word 'cocina', maintaining its original meaning of 'kitchen'.

Some related Spanish words include 'cocer' (to cook), 'cocido' (stew), and 'cocinero/a' (cook/chef). All these words share the same Latin root 'coquere' and relate to the act of cooking or the place where cooking happens.

English speakers might recognize the connection to words like 'cook', 'culinary', and 'cuisine', which all derive from the same Latin root 'coquere'. The word 'concoct' is also related, originally meaning 'to cook together'. These cognates show how the concepts of cooking and kitchen have remained closely linked across different languages descended from Latin.