'sipper' originates from the English word 'sip', which comes from the Middle English word 'sipen', meaning 'to drink in small quantities'.

'sipen' transformed into the modern English word 'sip', and 'sipper' was derived from 'sip' to denote someone who sips.

Initially, 'sip' meant 'to drink in small quantities', and this meaning has largely remained the same in modern usage.