'theme-focused' originates from the combination of 'theme' and 'focused', where 'theme' refers to a subject or topic, and 'focused' means concentrated or directed attention.

The word 'theme' comes from the Greek word 'thema', meaning 'a subject or topic', while 'focused' is derived from the Latin word 'focus', meaning 'hearth' or 'fireplace', which evolved to mean 'center of activity or interest'.

Initially, 'focus' meant 'hearth', but over time it evolved to mean 'center of interest', and when combined with 'theme', it denotes concentration on a specific subject.