'subject' originates from Latin, specifically the word 'subjectus,' where 'sub-' meant 'under' and 'jacere' meant 'to throw.' 'Related' comes from Latin 'relatus,' the past participle of 'referre,' meaning 'to bring back.'

'subject' changed from the Old French word 'sujet' and eventually became the modern English word 'subject.' 'Related' evolved from the Old French 'relater' and became 'related' in English.

Initially, 'subject' meant 'one who is under the rule of another,' but over time it evolved to mean 'a topic or area of study.' 'Related' has maintained its meaning of 'connected or associated with.'