OpenEtymology

union

UKˈjuːnjənUSˈjuːnjən

Meaning

1n

the act of joining two or more things together, or the state of being joined together

2n

an organization of workers formed to protect their rights and interests

3n

a group of states or countries that have joined together for a common purpose

Structure

word structure
1
uni
one
+
2
ion
noun suffix

Usage

The union of these two companies will create a market leader.

She is an active member of the teachers' union.

The European Union is a political and economic partnership.

Etymology

The word 'union' entered English in the 15th century from Old French 'union', which itself derived from the Latin 'unio', meaning 'oneness' or 'unity'. The Latin term stems from 'unus', the word for 'one', which has a deep Proto-Indo-European root óynos, also signifying 'one, single'. The core logic of the word is the concept of separate entities being brought together to function as a single, unified whole. This literal sense of making 'one' from many evolved into its modern abstract meanings, encompassing political alliances, marital bonds, and organized labor groups.

Analysis

Structure
uni (one) + ion (noun suffix)=unione+ionnoun suffix

'uni' originates from Latin 'unus', meaning 'one'. It functions as a combining form indicating singularity or unity. 'ion' is a suffix of Latin origin, used to form nouns denoting an action, process, or state.

Union Etymology, Origin & Meaning | wordDNA