'syntax-restricted' originates from the combination of 'syntax' and 'restricted', where 'syntax' comes from Greek 'syntaxis' meaning 'arrangement' and 'restricted' from Latin 'restringere' meaning 'to bind back'.

'syntax' evolved from Greek 'syntaxis' through Latin 'syntaxis' and Old French 'sintaxe', while 'restricted' evolved from Latin 'restringere' through Old French 'restricter'.

Initially, 'syntax' referred to the arrangement of words, and 'restricted' meant 'bound back'. Together, they evolved to mean 'limited by grammatical rules'.