I'm guessing that it relates to ration, which is a measurement, thus `measured thinking`. But I'm just guessing because I'm afraid to use my Oxford Concise Dictionary anymore because it's on the verge of totally falling apart and I can't afford a bookbinder. I bet it's a Greek word, anyway. The World Book Dictionary (Thorndike Barnhart) gives the source of ratio, rational and reason as the Latin: ratio rationis: reckoning. Apparently, the starting point for the development of the word is in mathematics (Greek, perhaps) where a rational number is one that can be expressed as a ratio. That's already a strange step from "reckoning" but that seems to be the case. From there, it seems to leap to describing a quality that fits or makes sense or is measured or orderly.
The noun 'rational' is a singular, common noun; a word for a number that can be written as a fraction or a ratio (rational number); a word for a thing.The word 'rational' is also an adjective.
Rational numbers are numbers that can be written as a fraction. Irrational numbers cannot be expressed as a fraction.
it has the word rational in it
the origin is where the word came from but the specific origin of the word ballot is latin root word.
The word "origin" is derived from the French word "origin" and the Latin word "originem," both of which mean, beginning, descent, birth, and rise.
where was the word colonel origin
There is no such word as diaster and so no origin word.
The origin of the word data is Latin ....
It is a 20th Century word of uncertain origin
Etymology is the word describing the origin of a word.
the origin of the word bucket is bu-cket
The origin of the word 'Snog' or 'Snogging' is England :)