ἀγήρατον

English (LSJ)

τό,

   A pot-marjoram, Origanum Onites, Dsc.4.58.    2 = θύμβρα, Ps.-Dsc.3.37.

Greek (Liddell-Scott)

ἀγήρατον: τό, ἀρωματικόν τι φυτόν, ἴσ, τὸ μυριόφυλλον, Achillea ageratum, Διοσκορ. 4, 59.

Frisk Etymological English

Grammatical information: n.
Meaning: a plant, Origanum onites (Dsc.).
Origin: XX [etym. unknown]
Etymology: As not getting old, zu γηράσκω, γῆρας? Semantic parallels in Strömberg Pflanzennamen 103.