Where does “confidential” come from?

Confidential derives from Latin confidentia, from confido meaning to trust, formed with the prefix con- from the root bʰidʰ- meaning to trust or persuade.

confidential (English): Kept, or meant to be kept, secret within a...

Definitions

  1. Kept, or meant to be kept, secret within a...

Ancestry of “confidential”, step by step

confidential traces back through two separate lines of ancestry.

via French confidentiel

StepLanguageWordMeaning
1Frenchconfidentielconfidential
2Frenchconfidentconfidant
3Italianconfidenteconfiding, trusting; confidant or confidante
4Latincōnfīdēnsconfiding (in)
5Latincōnfīdō(+ Dative of the person and e + ablative of the thing or in/de + ablative) to be confident or assured of, confide in, believe, trust, place or put confidence in; rely upon
6Latincōn-Used in compounds to indicate a being or bringing together of several objects
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 Latin cōnfīdentia

StepLanguageWordMeaning
1Latincōnfīdentiaassurance, confidence
2Latin-iaUsed to form a feminine abstract noun, usually...
3Latin-iusforming adjectives from nouns; nominative neuter...
4Proto-Italic-jōsForms comparative adjectives
5Proto-Indo-European-yósCreates adjectives from noun or verb stems

Words derived from “confidential

Every word from Proto-Indo-European gū-Every word from Latin cōn-Every word from Proto-Indo-European gʷet-
confidential — Etymology, Origin & Word History | Etymology Explorer