supercrescent
/ˌsuːpəˈkrɛsnt/ /ˌsjuːpəˈkrɛsnt/Now rare
adjective
That grows or is growing over or on top of something.
Origin
Mid 17th century; earliest use found in Alexander Read (1586?–1641). From classical Latin supercrēscent-, supercrēscēns, present participle of supercrēscere to grow on top of a surface from super- + crēscere to grow.