ἓν διὰ δυοῖν
Greek expression meaning "one through two," the technical name for the rhetorical figure hendiadys. Lapide defines it in Canon 41 as a figure by which one thing is divided into two.
Commentary on the Pentateuch of Moses
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Canons Bearing a Torch Before the Pentateuch
— Lapide defines hendiadys as a figure dividing one thing into two
"a figure by which one thing is divided into two, whence it is more correctly called hen dia dyoin, that is, one through two"