Where does “Ital” come from?

I need to note that I cannot write this etymology summary because the chain provided is incomplete and circular. "English ital" with no prior language listed means there is no etymological chain to trace—it only shows the word exists in English with an unknown meaning and no origin information. To write an accurate one-sentence etymology, I would need: - At least one language before English in the chain - Either the original form(s) and meaning(s), or an explicit statement that the origin is unknown Could you provide the full etymological chain for "ital"?

Ital (English): Alternative form of ital

Definitions

  1. Alternative form of ital

Ancestry of “Ital”, step by step

Ital traces back through two separate lines of ancestry.

via English I

StepLanguageWordMeaning
1EnglishIThe speaker or writer, referred to as the...
2Old Frenchithere
3Latinhīcthis; these in the plural
4Latinheic
5Latinhicthis; these in the plural
6Proto-Italichek(e)
7Proto-Indo-Europeangʰi-ḱethis, here
8Proto-Indo-EuropeanḱeDeictic particle, here; Post-positional...
9Middle Englishkyt
10Germankittputty certain kinds of cement used for fixing e.g. window panes
11Old High Germankuti
12Proto-West Germanickwidugum, resin
13Proto-Germanickweduzresin
14Proto-Indo-Europeangʷet-resin, gum; to say, speak
15Proto-Indo-Europeangū-to bend; curve; arch; vault; to bow, bend, arch,...

via English vital

StepLanguageWordMeaning
1EnglishvitalRelating to, or characteristic of life; Necessary...
2Middle Frenchvitalité
3Latinvitalitaslife, vitality
4Latinvītālisof or pertaining to life; vital, life-giving
5Latinvītalife
6Latinvīvōto live
7Proto-Italicgʷīwōlive, be alive
8Proto-Indo-Europeangʷíh₃wetito live, to be alive
9Proto-Indo-Europeangʷih₃wósalive, living
10Proto-Indo-Europeangʷeih₃w-to live
Every word from Proto-Indo-European gū-