'sutural' originates from Late Latin, specifically the word 'sutura', where 'sutura' meant 'a sewing together; seam'.

'sutural' developed from the Latin noun 'sutura' which passed into Medieval/Scientific Latin and Middle English as 'suture', and ultimately yielded the English adjective 'sutural'.

Initially it referred to a 'seam' or 'stitching', but over time it came to mean 'relating to a suture or seam', especially a junction between bones or in geological formations.