Late 17th century; earliest use found in John Evelyn (1620–1706), diarist and writer. Either from post-classical Latin suberosussuberose, or from suber + -ous.
Definition of suberous in US English:
suberous
adjectiveˈs(j)uːb(ə)rəs
Botany
Corky in form or texture; = suberose.
Origin
Late 17th century; earliest use found in John Evelyn (1620–1706), diarist and writer. Either from post-classical Latin suberosus suberose, or from suber + -ous.