Where does “nonirrational” come from?

nonirrational (English) comes from English irrational, from Latin irratiōnālis, from Latin rationalis, from Latin ratiō, from Latin -tiō, from Latin dissertātiō, from Latin dissertus, from Latin disserere — small stone, pebble; gravel, rubble.

nonirrational (English): Not irrational

Definitions

  1. Not irrational

Ancestry of “nonirrational”, step by step

nonirrational traces back through two separate lines of ancestry.

via English irrational

StepLanguageWordMeaning
1EnglishirrationalNot rational; unfounded or nonsensical; Of a real...
2Latinirratiōnālisirrational
3Latinrationalisaccounts; rational, reasonable, of or possessing...
4Latinratiōreason, reasoning, explanation, ground, motive, rationality, rationale, purpose
5Latin-tiōtion, -ation, -ing
6Latindissertātiō(spoken) dissertation, discourse, disquisition
7Latindissertusarranged, disposed; explained
8Latindissereresecond-person singular future passive indicative...
9Latindis-asunder, apart, in two; reversal, removal;...
10Latincalceusshoe
11Latincalxlimestone; chalk; the finish line
12Ancient Greekχάλιξsmall stone, pebble; gravel, rubble

via English non

StepLanguageWordMeaning
1EnglishnonObsolete form of none
2Frenchnonno; not; a no, a negative response
3Old Frenchnonno; not; Alternative form of nom
4Latinnōnnot
5Old Latinnoenum
6Proto-Indo-Europeanóynosone; single
Every word from Ancient Greek χάλιξEvery word from Latin -tiōEvery word from Latin dis-