Where does “unpennable” come from?

unpennable (English) comes from English pennable, from English pen, from English penetration, from Middle English penetracioun, from Old French penetracïon, from Latin penetrātiō, from Latin -tiō, from Latin dissertātiō — small stone, pebble; gravel, rubble.

unpennable (English): Unable to be written

Definitions

  1. Unable to be written

Ancestry of “unpennable”, step by step

unpennable traces back through two separate lines of ancestry.

via English pennable

StepLanguageWordMeaning
1EnglishpennableAble to be written
2EnglishpenAn enclosure used to contain domesticated...
3EnglishpenetrationThe act of penetrating something; Specifically,...
4Middle Englishpenetracioun
5Old Frenchpenetracïonpenetration (act, instance of penetrating)
6Latinpenetrātiōpiercing, penetration
7Latin-tiōtion, -ation, -ing
8Latindissertātiō(spoken) dissertation, discourse, disquisition
9Latindissertusarranged, disposed; explained
10Latindissereresecond-person singular future passive indicative...
11Latindis-asunder, apart, in two; reversal, removal;...
12Latincalceusshoe
13Latincalxlimestone; chalk; the finish line
14Ancient Greekχάλιξsmall stone, pebble; gravel, rubble

via English un

StepLanguageWordMeaning
1EnglishunOne
Every word from Ancient Greek χάλιξEvery word from Latin -tiōEvery word from Latin dis-