The Collaborative International Dictionary
Semiproof
Semiproof \Sem"i*proof`\ (s[e^]m"[i^]*pr[=oo]f`), n.
Half proof; evidence from the testimony of a single witness.
[Obs.]
--Bailey.
Wiktionary
semiproof
n. (context obsolete English) Half proof; evidence from the testimony of a single witness.