An Etymological Dictionary of Astronomy and Astrophysics

The systematic grouping of astronomical objects
into categories on the basis of physical, morphological, or evolutionary characteristics.

Etymology (EN): Classification, from O.Fr., from classifier, from → class + -fier, from L. -ficare, root of facere “to make, do;” PIE base *dhe- “to put, to do” (cf. Skt. dadhati “puts, places;” Av. dadaiti “he puts,” O.Pers. ada “he made,” Gk. tithenai “to put, set, place.”

Etymology (PE): Radebandi, from radé, → class,

• bandi, verbal noun of bastan “to bind, shut; to get, acquire, incur,” from Mid.Pers. bastan/vastan “to bind, shut;” Av./O.Pers. band- “to bind, fetter,” banda- “band, tie;” cf.
  Skt. bandh- “to bind, tie, fasten;” Ger. binden, E. bind, → band; PIE base *bhendh- “to bind.”