Lapis emathites
From Simon Online
Lapis emathites est dictu sanguineus aut quod fricatura eius sanguineum colorem reddit: aut quod omni fluxui sanguinis competit.
Apparatus:
dictu ABC | dictum ef {cf. Capelli p.90)
sanguineum (-eũ AC; -guineũ e) colorem (-rẽ A e) reddit AC e | sanguineuʒ colorem reddit f | sãguineũ redit colorẽ B
fluxui AC f | fluxu B e
competit (cõpe- AB; compe- e) ABC | cõpeta f
Translation:
The emathites stone in translation simply means "bloody, bloodlike {sc. stone}" {i.e. from Greek /haîma/ "blood"}, either because rubbing it brings on a red colour or because it is suitable for {stemming} a blood-flow.
For further information see Ematites.