Where does “DEFCON” come from?

DEFCON (English) comes from English condition, from Middle English condicioun, from Old French condicion, from Latin condiciō, from Latin condīcō, from Latin cōn-, from Latin cum, from Old Latin com — to bend; curve; arch; vault; to bow, bend, arch,...

DEFCON (English): activation and readiness level of the United States armed forces, as "DEFCON 4"

Definitions

  1. activation and readiness level of the United States armed forces, as "DEFCON 4"

Ancestry of “DEFCON”, step by step

DEFCON traces back through two separate lines of ancestry.

via English condition

StepLanguageWordMeaning
1EnglishconditionA logical clause or phrase that a conditional...
2Middle Englishcondiciouncondition
3Old Frenchcondicioncondition; social rank
4LatincondiciōAn agreement, contract, covenant, stipulation, pact, proposition
5Latincondīcōto talk something over together, agree to/upon, concert, promise; fix, appoint
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 English defense

StepLanguageWordMeaning
1EnglishdefenseThe action of defending or protecting from...
2Middle Englishdefensthe act of defending
3Old Frenchdefens
4Late Latindefensaprotection; bounded, defended; defence
5Latindefensusdriven away, having been driven away; defended,...
6Latindēfendōto drive away
7Latinfendōto hit
8Proto-Indo-Europeangʷʰen-to strike, slay, kill
9Proto-Indo-Europeanbʰon-
Every word from Proto-Indo-European gū-Every word from Latin cōn-Every word from Proto-Indo-European gʷet-
DEFCON — Etymology, Origin & Word History | Etymology Explorer