Where does “matiness” come from?

matiness (English) comes from English matey, from English maté, from Middle English mate, from Middle Low German māte, from Old Saxon gimato, from Proto-Germanic gamatjô, from Proto-Germanic ga-, from Proto-Indo-European ḱóm — resin, gum; to say, speak.

Ancestry of “matiness”, step by step

StepLanguageWordMeaning
1EnglishmateySociable or friendly; Diminutive of mate, friend;...
2EnglishmatéAn evergreen tree, Ilex paraquariensis, native to...
3Middle Englishmatemate companion, comrade
4Middle Low Germanmāte
5Old Saxongimato
6Proto-Germanicgamatjô
7Proto-Germanicga-Indicates association or togetherness; co-;...
8Proto-Indo-Europeanḱómbeside, near, by, with
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
Every word from Proto-Indo-European gʷet-
matiness — Etymology, Origin & Word History | Etymology Explorer