Where does “custume” come from?

custume (Old Portuguese) comes from Vulgar Latin costumen, from Latin consuetumen, from Latin consuetudinem, from Latin consuetudo, from Latin consuesco, from Latin con-, from Latin cum, from Old Latin com — to bend; curve; arch; vault; to bow, bend, arch,...

Ancestry of “custume”, step by step

custume traces back through two separate lines of ancestry.

via Vulgar Latin costumen

StepLanguageWordMeaning
1Vulgar Latincostumen
2Latinconsuetumen
3Latinconsuetudinemaccusative singular of cōnsuētūdō
4LatinconsuetudoThe act of habituating; state of being habituated...
5LatinconsuescoI accustom, inure or habituate, tend to; I have...
6Latincon-Used in compounds to indicate a being or bringing...
7Latincumwith, along with; at; -fold
8Old LatincomAlternative form of cum
9Proto-Italickomwith, along, at
10Proto-Indo-Europeanḱómbeside, near, by, with
11Proto-Indo-EuropeanḱeDeictic particle, here; Post-positional...
12Middle Englishkyt
13Germankittputty certain kinds of cement used for fixing e.g. window panes
14Old High Germankuti
15Proto-West Germanickwidugum, resin
16Proto-Germanickweduzresin
17Proto-Indo-Europeangʷet-resin, gum; to say, speak
18Proto-Indo-Europeangū-to bend; curve; arch; vault; to bow, bend, arch,...

via Vulgar Latin consuetumen

StepLanguageWordMeaning
1Vulgar Latinconsuetumen
2LatincōnsuētūdōThe act of habituating; state of being habituated or accustomed, habituation
3Latincōnsuēscōto accustom, inure or habituate, tend to
4Latincōn-Used in compounds to indicate a being or bringing together of several objects
5Proto-Italic*kom-together
Every word from Proto-Indo-European gū-Every word from Proto-Indo-European gʷet-Every word from Proto-Germanic kweduz