subobscure
/ˌsʌbəbˈskjʊə/ /ˌsʌbəbˈskjɔː/adjective
Somewhat dark or obscure; (Botany and Zoology ) somewhat dark and dingy in colour.
Origin
Early 17th century; earliest use found in Henry Burton (d.?1648), Independent minister and religious controversialist. From sub- + obscure, after classical Latin subobscūrus somewhat obscure.