The word 'xeric' is a modern scientific term constructed directly from classical elements to describe ecological conditions. Its core, 'xer-', originates from the Ancient Greek adjective xēros, meaning 'dry' or 'parched'. This Greek root is combined with the productive adjectival suffix '-ic', borrowed via Latin from Greek '-ikos', which denotes a relationship or pertaining to a quality. Thus, the literal construction 'pertaining to dryness' accurately defines its modern usage in climatology and ecology to describe arid habitats with limited available moisture, showcasing a direct and logical borrowing from Greek into technical English vocabulary.

Structure: xer (dry) + ic (adjective suffix) - xer: From Greek xēros, meaning 'dry'. It functions as the core root conveying the concept of dryness. - ic: A suffix of Greek and Latin origin, used to form adjectives meaning 'of, pertaining to, or characteristic of'.