Wiktionary
vb. (present participle of deskill English)
Wikipedia
Deskilling is the process by which skilled labor within an industry or economy is eliminated by the introduction of technologies operated by semiskilled or unskilled workers. This results in cost savings due to lower investment in human capital, and reduces barriers to entry, weakening the bargaining power of the human capital.
Deskilling can also refer to individual workers specifically. The term refers to a person becoming less proficient over time. Examples of how this can occur include changes in one's job definition, moving to a completely different field, chronic underemployment (e.g. working as cashier instead of accountant), and being out of the workforce for extended periods of time (e.g. quitting a position in order to focus exclusively on child-rearing).
It is criticized for decreasing quality, demeaning labor (rendering work mechanical, rather than thoughtful and making workers automatons rather than artisans), and undermining community.