Where does “carbon cost” come from?

carbon cost (English) comes from English cost, from Middle English cost, from Middle English costen, from Old French couster, from Medieval Latin costo, from Latin consto, from Latin com-, from Latin con- — whale, sea monster; abyss.

Ancestry of “carbon cost”, step by step

carbon cost traces back through two separate lines of ancestry.

via English cost

StepLanguageWordMeaning
1EnglishcostTo incur a charge of; to require payment of a (specified) price
2Middle Englishcostmeans
3Middle Englishcostento cost
4Old FrenchcousterAlternative form of coster; to cost
5Medieval Latincosto
6Latinconstoto stand together; to stand still; to remain the...
7Latincom-allomorph of con-
8Latincon-Used in compounds to indicate a being or bringing...
9Latincumwith, along with; at; -fold
10Old LatincomAlternative form of cum
11Proto-Italickomwith, along, at
12Proto-Indo-Europeanḱómbeside, near, by, with
13Proto-Indo-EuropeanḱeDeictic particle, here; Post-positional...
14Middle Englishkyt
15Russianкитwhale; genitive plural of ки́та
16Old Church Slavonicкитъwhale
17Ancient Greekκῆτοςwhale, sea monster; abyss

via English carbon

StepLanguageWordMeaning
1EnglishcarbonThe chemical element with an atomic number of 6....
2EnglishbudgetThe amount of money or resources earmarked for a...
3Middle Englishbogett
4Old Frenchbougette
5Old Frenchbougesack; purse; small bag
6Latinbulgaknapsack, wallet, satchel; wallet, purse; womb
7Gaulishbolgābag, sack
8Proto-Celticbolgossack, bag; stomach
9Proto-Indo-Europeanbʰelǵʰ-to swell
10Proto-Indo-Europeanbʰel-to sound; to speak, roar, bark; shiny, white; to...
11Proto-Indo-Europeanbʰōl-
Every word from Ancient Greek κῆτος