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rationally

UK[ˈræʃnəli]US[ˈræʃnəli]
adv

in a way that is based on reason, logic, or clear thought, rather than emotions

adv

in a way that shows the ability to think and make sensible decisions

Morpheme Breakdown

ration
al
ly
ration

reason

al

adjective suffix

ly

adverb suffix

Etymology

the word 'rationally' is built upon the core latin noun ratio, which originally meant a reckoning, account, or calculation. this concrete sense of mathematical or logical procedure evolved to signify the faculty of reason itself. the adjective-forming suffix -al was added to create 'rational', meaning possessing or exercising reason. finally, the old english adverbial suffix -ly was appended, transforming it into 'rationally', which describes an action performed in a logical, reasoned manner. thus, the word's journey encapsulates the progression from the tangible act of counting to the abstract concept of logical thought and behavior.

Analysis

Structure: ration (reason) + al (adjective suffix) + ly (adverb suffix) - ration: from latin ratio (reckoning, reason, calculation) - al: from latin -alis (adjective-forming suffix) - ly: from old english -lice (adverb-forming suffix)

Examples

she argued her point calmly and rationally.

we need to approach this problem rationally, not emotionally.

he couldn't rationally explain the decision he had made in the heat of the moment.

rationally – Meaning, Etymology & Word Origin | OpenEtymology