Origin and history of technonomy

word-forming element, principally in the science, forming names of disciplines describing natural laws or scientific methods; from Greek -nomia "method," -nomos "managing," nomos "law, usage, custom," all from the verb nemein "to manage," from PIE root *nem- "assign, allot; take." 

word-forming element active from mid-19c. and meaning "art, craft, skill," later "technical, technology," from Latinized form of Greek tekhno-, combining form of tekhnē "art, skill, craftsmanship, craft in work; method, system, an art, a system or method of making or doing," from PIE *teks-na- "craft" (of weaving or fabricating), from suffixed (or reduplicated) form of root *teks- "to weave," also "to fabricate." The full range of the Greek word is difficult to translate into English.

[Greek Technē] includes both the fine arts (music) and the practical arts (cookery); all forms of skilled craftsmanship (ship-building) and various professional activities (navigation and soldiering); besides activities calling for scientific skill (medicine). It may thus be said to cover any skilled activity with its rules of operation, the knowledge of which is acquired by training. [note in Sir Desmond Lee translation of Plato's "Republic"]