Where does “(ec)cu istoru” come from?

(ec)cu istoru (Vulgar Latin) comes from Latin istorum, from Latin iste, from Latin hāc, from Latin hīc, from Latin heic, from Latin hic, from Proto-Italic hek(e), from Proto-Indo-European gʰi-ḱe — resin, gum; to say, speak.

Ancestry of “(ec)cu istoru”, step by step

(ec)cu istoru traces back through two separate lines of ancestry.

via Latin istorum

StepLanguageWordMeaning
1Latinistorumgenitive masculine plural of iste; genitive...
2Latinistethat near you; those in the plural
3Latinhācthis way; these; in this place (or way)
4Latinhīcthis; these in the plural
5Latinheic
6Latinhicthis; these in the plural
7Proto-Italichek(e)
8Proto-Indo-Europeangʰi-ḱethis, here
9Proto-Indo-EuropeanḱeDeictic particle, here; Post-positional...
10Middle Englishkyt
11Germankittputty certain kinds of cement used for fixing e.g. window panes
12Old High Germankuti
13Proto-West Germanickwidugum, resin
14Proto-Germanickweduzresin
15Proto-Indo-Europeangʷet-resin, gum; to say, speak

via Latin eccum

StepLanguageWordMeaning
1Latineccumbehold him; here!, look!
2Latineccesee!, look!, behold!, points out something with...
3Latin-ceaffixed, usually to demonstratives, forming...
4Proto-Italickehere
5Indo-European*ḱe
Every word from Proto-Indo-European gʷet-Every word from Proto-Germanic kweduzEvery word from Proto-West Germanic kwidu