Jestin is of Latin origin, derived from the Roman family name Justinius, which means 'just' or 'righteous'. It was introduced to Britain during the Norman Conquest in the 11th century and has since been used as a given name. Jestin is composed of two elements: 'Justus', meaning 'just', and '-inus', a suffix that often indicates 'belonging to'. The name gained popularity in England but remains quite rare, offering a unique choice for parents seeking an uncommon yet meaningful moniker.
"The name Jestin experienced a significant rise in popularity from 1973 to its peak in 1987, with over 40 births annually during this period. After the mid-1990s, its usage declined consistently, with fewer than 35 births per year since 1996. Recently, it has become quite rare, with fewer than 20 births each year from 2010 onwards."