The Spanish word 'angustia' (meaning 'anguish' or 'anxiety') comes from the Latin word 'angustia', which meant 'narrowness' or 'difficulty'. This Latin noun was derived from the adjective 'angustus', meaning 'narrow' or 'tight'. The semantic evolution from physical narrowness to emotional distress makes intuitive sense - anxiety and anguish can feel like being confined in a tight space or experiencing a constricting sensation.

While 'angustia' itself is a commonly used Spanish word, there aren't many simpler or more basic Spanish words that share its Latin root 'angustus'. However, you might encounter related words like 'angustioso' (distressing) or 'angustiarse' (to become distressed), which are derived from 'angustia'.

English speakers might recognize the connection between Spanish 'angustia' and English 'anguish', as they both come from the same Latin root. The English word 'anxious' is also distantly related, sharing the same Indo-European root that conveyed the idea of tightness or constriction. This connection helps explain why anxiety is often described as a feeling of tightness in the chest or throat.