'meticulously' originates from Latin, specifically the word 'meticulosus,' where 'metus' meant 'fear.' 'Planned' comes from the Old French 'plan,' meaning 'a drawing or diagram.'

'Meticulosus' transformed into the English word 'meticulous,' and 'plan' evolved from the Old French 'plan' to the modern English 'plan.'

Initially, 'meticulous' meant 'fearful,' but over time it evolved into its current meaning of 'showing great attention to detail.'