'wooer' originates from Old English, specifically the word 'wōgian,' where 'wōgian' meant 'to woo or court.'

'wōgian' transformed into the Middle English word 'woen,' and eventually became the modern English word 'woo' and its derivative 'wooer.'

Initially, it meant 'to court or seek affection,' and this meaning has largely remained the same in modern usage.