English

hypergraft

From hyper- + graft.

Proto-Indo-European *úp

Proto-Indo-European *upér ‘over, above’

Proto-Hellenic *hupér

Ancient Greek ὑπέρ ‘over’

Proto-Indo-European *gerbʰ- ‘to carve’

…

Ancient Greek γραφείον

Latin graphium ‘stylus’

Old French greffe ‘stylus’

Middle English graffe

English graft

Today it means

verb To form a hyperbranched graft polymer

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

Etymograph / hypergraft