Where does “unsufficiently” come from?

unsufficiently (English) comes from English unsufficient, from English sufficient, from Old French sufisanz, from Latin sufficiēns, from Latin sufficiō, from Latin faciō, from Latin -torium, from Latin -tōrius.

Ancestry of “unsufficiently”, step by step

unsufficiently traces back through two separate lines of ancestry.

via English unsufficient

StepLanguageWordMeaning
1EnglishunsufficientNot sufficient
2EnglishsufficientEqual to the end proposed; adequate to what is...
3Old Frenchsufisanz
4Latinsufficiēnsimbuing etc
5Latinsufficiōto supply, provide, afford, give, fill, imbue, furnish, yield, produce
6Latinfaciōto do
7Latin-toriumnominative neuter singular of -tōrius; accusative...
8Latin-tōriusory
9Latin-tor-er
10Proto-Italic-tōrForms agent nouns to verb stems
11Proto-Indo-European-tōrDerives agent nouns from verbs, denoting someone...
12Proto-Indo-European-tor-s

via English ly

StepLanguageWordMeaning
1EnglishlyAbbreviation of light-year
2VietnameselyAlternative spelling of li
Every word from Proto-Indo-European -tor-s