English

erythrogram

From erythro- + gram.

Proto-Indo-European *h₁rewdʰ- ‘red’

Proto-Indo-European *h₁rudʰrós ‘red’

Proto-Hellenic *erutʰrós ‘red’

Ancient Greek ἐρῠθρός ‘red’

Ancient Greek γράμμα ‘a small weight, a scruple’

French gramme

English gram

Today it means

noun A hemogram of red blood cells

Language periods are conventional ranges, not dates for this word.

Etymograph / erythrogram