denominator
UK[dɪˈnɒmɪneɪtə(r)]US[dɪˈnɑːmɪneɪtər]
n
The number below the line in a fraction that shows the number of equal parts the whole is divided into.
n
A common trait or characteristic shared by all members of a group.
Morpheme Breakdown
de
nomin
ator
de
completely
nomin
name
ator
agent suffix
Etymology
The word 'denominator' has a clear mathematical logic rooted in its Latin components. It originates from the Latin verb 'denominare', meaning 'to name' or 'to specify', itself built from 'de-' (thoroughly) and 'nominare' (to name). In a fraction, the denominator performs the action of thoroughly naming or specifying the type of parts—such as thirds or fifths—into which the whole unit is divided. This agentive role is captured by the suffix '-ator'. The broader, figurative sense of a shared characteristic follows the same logic: it is the common 'name' or label that defines all members of a category.
Analysis
Structure: de (completely) + nomin (name) + ator (agent suffix)
de- (Latin prefix, meaning 'completely' or 'down from'); nomin (Latin root 'nomen', meaning 'name'); -ator (Latin agent noun suffix, meaning 'one who or that which performs an action').
Examples
In the fraction 3/4, the denominator is 4.
The common denominator among the successful candidates was their resilience.
To add fractions, you must first find a common denominator.