- -escent [es′ənt][L -escens (gen. -escentis), prp. ending of inceptive or inchoative verbs in -escere] suffix forming adjectives1. in the process of ____ing; starting to be, being, or becoming (as specified) [obsolescent]2. giving off or reflecting light, or showing a play of color (as specified) [phosphorescent]
English World dictionary. V. Neufeldt. 2014.