regressandWiktionary 原文构词拆分regress词根/词干+-and后缀(now chiefly dialectal or Scotland) Used to form the present participle of verbs, equivalent to -ing. · (now rarely productive) A suffix of Anglo-Saxon origin forming adjectives from verbs analogous to -ing.词源说明From regress + -and.释义（英文）名词 Noun(statistics) The dependent variable in a regression.