The Collaborative International Dictionary
Starproof
Starproof \Star"proof`\ (st[aum]r"pr[=oo]f`), a.
Impervious to the light of the stars; as, a starproof elm.
[Poetic]
--Milton.
Wiktionary
starproof
a. (context poetic nonce English) impervious to the light of the stars.