glutinous

The word 'glutinous' traces its lineage directly to the Latin noun glūten, meaning 'glue'. This Latin term itself is believed to derive from the Proto-Indo-European root glei-, meaning 'to stick together' or 'to smear', a root that also gave rise to a family of sticky words including 'clay', 'glue', and 'cling'. The suffix -ōsus was added in Latin to form the adjective glūtinōsus, meaning 'full of glue' or 'gluey'. Entering English in the late Middle English period, 'glutinous' retained this core sense of stickiness, which was later applied specifically to describe the cohesive texture of certain varieties of cooked rice.

Structure: glutin (glue) + ous (adjective suffix) - glutin: From Latin glūtin-, the stem of glūten (glue). It functions as the core root conveying the sense of 'glue' or 'sticky substance'. - ous: A suffix of Latin origin (-ōsus) used to form adjectives meaning 'full of' or 'having the qualities of'.