Webster’s Revised Unabridged Dictionary · 1913
Hæma-
Hæm′a- (hĕm′ȧ- or hē′mȧ-), Hæm′a·to- (hĕm′ȧ·tō- or hē′mȧ·tō-), Hæm′o- (hĕm′ō- or hē′mō-). [Gr. αἷμα, αἵματος, blood.] Combining forms indicating relation or resemblance to blood, association with blood; as, hæmapod, hæmatogenesis, hæmoscope.
☞ Words from Gr. αἷμα are written hema-, hemato-, hemo-, as well as hæma-, hæmato-, hæmo-.