词根词缀：aster-, -aster, -astrous

【来源及含义】Greek: star, stars

【同源单词】aster, aster yellows, asteria, asterial, asteriated, asterion

词根词缀：spondylo-, spondyl-

【来源及含义】Greek: spine, spinal column, vertebra

【同源单词】asterospondylous, perispondylitis, platyspondulia, spondylalgia, spondylarthritis, spondylitic