I discovered today that bos is a Dutch word for forest or wood, and this immediately made me think of the wonderful English word bosky, which is defined by the OED as “Consisting of or covered with bushes or underwood; full of thickets, bushy”.
The OED says that bosky comes from bosk, a Middle English version of bush, which like the Dutch words bos and bosje (bush), comes from the late Latin boscum / boscus (wood).
A similar-sounding English word, boss, is not related to bosky, but does come from Dutch – from baas (boss, owner), from the Middle Dutch baes, which originally meant uncle, and was first used to mean master in America during the 17th century [source].