from
The Collaborative International Dictionary of English v.0.48
Haema- \H[ae]m"a-\ (h[e^]m"[.a]- or h[=e]"m[.a]-), Haemato-
\H[ae]m"a*to-\ (h[e^]m"[.a]*t[-o]- or h[=e]"m[.a]*t[-o]-),
Haemo- \H[ae]m"o-\ (h[e^]m"[-o]- or h[=e]"m[-o]-). [Gr. a"i^ma,
a"i`matos, blood.]
Combining forms indicating relation or resemblance to blood,
association with blood; as, h[ae]mapod, h[ae]matogenesis,
h[ae]moscope.
[1913 Webster]
Note: Words from Gr. a"i^ma are written hema-, hemato-,
hemo-, as well as h[ae]ma-, h[ae]mato-, h[ae]mo-.
[1913 Webster]