the.com/unionization

means The process by which workers organize into a union to bargain collectively with employers over pay, conditions, and rights.

from Built from 'union' (Latin unio, 'oneness,' from unus, 'one') plus the '-ize/-ization' pattern that turns a noun into 'the process of becoming' it — the same machinery behind 'modernization' or 'colonization.' 'Union' itself traveled from Latin into English meaning simple oneness or unity before narrowing, by the 18th and 19th centuries, into its specific sense of workers banding together. 'Unionization' as the noun for that organizing process is a product of the modern labor movement, emerging alongside trade unions themselves — the word for the act arriving once the act became common enough to need naming.