Where does “unmentionableness” come from?

unmentionableness (English) comes from English unmentionable, from English mentionable, from English mention, from Middle English mencioun, from Old French mention, from Latin mentionem, from Latin mentiō, from Latin -tiō — small stone, pebble; gravel, rubble.

unmentionableness (English): The state or quality of being unmentionable

Definitions

  1. The state or quality of being unmentionable

Ancestry of “unmentionableness”, step by step

unmentionableness traces back through two separate lines of ancestry.

via English unmentionable

StepLanguageWordMeaning
1EnglishunmentionableNot mentionable; Something not to be discussed in...
2EnglishmentionableImportant or worthy of note; Suitable to be...
3EnglishmentionA speaking or notice of anything, usually in a...
4Middle Englishmenciounmention
5Old Frenchmentionmention
6Latinmentionemaccusative singular of mentiō
7Latinmentiōmention, a calling to mind
8Latin-tiōtion, -ation, -ing
9Latindissertātiō(spoken) dissertation, discourse, disquisition
10Latindissertusarranged, disposed; explained
11Latindissereresecond-person singular future passive indicative...
12Latindis-asunder, apart, in two; reversal, removal;...
13Latincalceusshoe
14Latincalxlimestone; chalk; the finish line
15Ancient Greekχάλιξsmall stone, pebble; gravel, rubble

via English Ness

StepLanguageWordMeaning
1EnglishNessAn Ulster princess and the mother of Conchobar mac Nessa and Findchoem in the Ulster Cycle of Irish mythology. Daughter of Eochaid Sálbuide. Also the mother of Cormac Cond Longas by incest with Conchobar mac Nessa
2Middle Englishnesse
3Old Englishnæsnot, not at all; not; first/third-person singular...
4Proto-Germanicnasjąfoothill; headland; cape
5Proto-Indo-Europeannéh₂snose
Every word from Ancient Greek χάλιξEvery word from Latin -tiōEvery word from Latin dis-