'commonly' originates from Middle English, specifically the word 'comunly,' where 'comun' meant 'common.' 'Connected' originates from Latin, specifically the word 'connectere,' where 'con-' meant 'together' and 'nectere' meant 'to bind.'

'commonly' changed from the Middle English word 'comunly' and eventually became the modern English word 'commonly.' 'Connectere' transformed into the French word 'connecter,' and eventually became the modern English word 'connect' through Middle English.

Initially, 'commonly' meant 'in a common manner,' and this meaning has largely remained the same in modern usage. 'Connected' initially meant 'to bind together,' and this meaning has evolved to include associations and links.