Lexical Definition

‎δογματίζω‎ dogmatízō (dog-mat-id'-zo) to decree G:V
from ‎δόγμα‎

be subject to ordinances.

Usage: 2 forms in 2 verses
Form Translated As     In Verse(s)
δογματισάτω let him decree LXX.Esth.3.9
δογματίζεσθε do you submit to decrees Col.2.20

Abbott-Smith

δογματίζω [in LXX: Es 3:9 (כָּתַב ni.), Da LXX 2:13, 15 (דָּתָא, דָּת), I Es 6:34, II Mac 10:3 15:36, III Mac 4:11 * ;]
to decree. Mid., to subject oneself to an ordinance: Col 2:20.†

Abbott-Smith References

Book Refs
Ezra 3:9
Daniel 2:13 · 2:15
Colossians 2:20

Liddell-Scott-Jones

δογματίζω-ίζω,

lay down as an opinion, ϊδίους εἶναι [Refs 1st c.BC+]; οἱ -οντες, ={οἱ δογματικοί}, [Refs 2nd c.AD+]:—passive, τὰ -όμενα [Refs 2nd c.AD+]

__2 decree by ordinance, with infinitive, [LXX+1st c.BC+]; of the Roman Senate, [Refs 1st c.AD+]; δ. τινὰ καλήν declare her beautiful, [Refs 1st c.AD+]:—passive, τὰ δογματισθέντα [Refs]
__3 in passive, of persons, submit to ordinances, [NT]

LSJ Scripture Refs: Col.2.20