The Spanish word 'sanación' (meaning 'healing') traces back to Latin roots. It starts with the Latin adjective 'sanus' meaning 'healthy' or 'sound', which developed into the Latin verb 'sanare' meaning 'to heal'. From 'sanare' came the Latin noun 'sanatio' meaning 'healing' or 'curing'. In Spanish, 'sanare' evolved into the verb 'sanar' ('to heal'), and when combined with the Spanish suffix '-ción' (which indicates an action or effect), it formed 'sanación', meaning the act or process of healing.

Some simpler related Spanish words include the verb 'sanar' (to heal), which is more commonly used and easier to remember. You might also encounter 'sano' (healthy), 'sanidad' (health, sanitation), and 'sana' (healthy, feminine form). All these words share the basic concept of health and healing from the Latin 'sanus'.

English speakers might recognize the connection to words like 'sane', 'sanity', and 'sanitary', which all come from the same Latin root 'sanus'. While 'sane' developed to specifically refer to mental health or soundness of mind, and 'sanitary' relates to cleanliness and health conditions, they all share the original Latin meaning of being 'healthy' or 'sound'.