Obs. [f. BLOOD sb. + IRON sb.] An instrument for letting blood; a lancet.
c. 1440. Promp. Parv., 40. Bloodeyryn, bledynge yryn.
1451. Invent., in Test. Ebor., III. 118. De blode yrens et launcettes in j case.
1523. Fitzherb., Husb., § 58. Take a bloud yren
and smyte hym bloudde on bothe sydes.