Rational etymology

English

English word rational comes from Latin reor (I reckon, calculate.. I think, deem, judge.)

Etymology of rational

Detailed word origin of rational

Dictionary entry Language Definition
reor Latin (lat) I reckon, calculate.. I think, deem, judge.
ratus Latin (lat) ; rat Established, authoritative. Fixed, certain.
ratio Latin (lat) Calculation, account. Manner, method. Reason, explanation.
rationalis Latin (lat) Accounts (attributive). Rational, reasonable, of or possessing reason. Syllogistic. That has a ratio.
rationale Malayalam (mal)
rational Old French (fro)
rational English (en) (mathematics) A rational number: a number that can be expressed as the quotient of two integers. (chemistry) Expressing the type, structure, relations, and reactions of a compound; graphic; said of formulae.. (mathematics, arithmetic, not comparable) Of an algebraic expression, capable of being expressed as the ratio of two polynomials.. (mathematics, arithmetic, number theory, not [...]

Words with the same origin as rational

Descendants of reor

irrational rate reason