The term 'reliably-formed' is a compound adjective formed by combining 'reliably' and 'formed'. 'Reliably' originates from the word 'reliable', which comes from the Latin 're-' meaning 'again' and 'ligare' meaning 'to bind'. 'Formed' comes from the Latin 'formare', meaning 'to shape'.

'Reliably' evolved from the Old French 'reliable', and 'formed' from the Old French 'former'.

Initially, 'reliable' meant 'able to be relied upon', and 'formed' meant 'shaped'. Together, they convey the idea of being consistently shaped or structured.