'skylark' originates from Middle English, specifically the word 'larke,' where 'lark' referred to the bird known for its singing.

'larke' transformed into the modern English word 'skylark' by the 16th century, emphasizing the bird's habit of singing while flying high in the sky.

Initially, it referred to the bird itself, but over time it also came to mean 'to frolic or play boisterously.'