'steadily' originates from 'steady,' which comes from Old English 'stede,' meaning 'place' or 'position.' 'Increasing' comes from Latin 'increscere,' where 'in-' meant 'into' and 'crescere' meant 'to grow.'

'steadily' evolved from Middle English 'stedi,' and 'increasing' from Old French 'encreistre,' eventually becoming the modern English 'steadily increasing.'

Initially, 'steadily' meant 'firmly' or 'securely,' and 'increasing' meant 'growing larger.' Over time, they combined to describe a consistent growth pattern.