Where does “unsealable” come from?

unsealable (English) comes from English sealable, from English seal, from Middle English sel, from Anglo-Norman sëel, from Latin sigillum, from Latin -lus, from Proto-Italic -elos, from Proto-Indo-European -e-lós — Forms agent nouns from verbal roots.

unsealable (English): Unable to be sealed

Definitions

  1. Unable to be sealed

Ancestry of “unsealable”, step by step

unsealable traces back through two separate lines of ancestry.

via English sealable

StepLanguageWordMeaning
1EnglishsealableThat may be sealed
2EnglishsealA pinniped (Pinnipedia), particularly an earless seal (true seal) or eared seal
3Middle EnglishselGood fortune, prosperity, luck
4Anglo-Normansëel
5Latinsigillumfigurine, statuette; seal
6Latin-lusAlternative form of -ulus; diminutive suffix
7Proto-Italic-elosForms desubstantival and deadjectival diminutive nouns
8Proto-Indo-European-e-lós
9Proto-Indo-European-lósForms agent nouns from verbal roots

via English un

StepLanguageWordMeaning
1EnglishunOne
Every word from Proto-Indo-European -lósEvery word from Latin -lusEvery word from Latin sigillum