Where does “deflator” come from?

Deflator derives from English deflate, which combines the Latin prefix de- with inflate, itself from Latin in- plus the root flāre (to blow), ultimately from Proto-Indo-European bʰel-.

deflator (English): That which deflates; A factor applied to economic...

Definitions

  1. That which deflates; A factor applied to economic...

Ancestry of “deflator”, step by step

deflator traces back through two separate lines of ancestry.

via English deflate

StepLanguageWordMeaning
1EnglishdeflateTo remove air or some other gas from within an...
2EnglishinflateTo enlarge an object by pushing air into it; to...
3Latinīnflātusinflated, having been blown into
4Latinīnflōto inflate; to blow into
5Latinflōto breathe, blow
6Proto-Italicflāō
7Proto-Indo-Europeanbʰleh₁-to bleat; to cry; to blow
8Proto-Indo-Europeanbʰel-to sound; to speak, roar, bark; shiny, white; to...
9Proto-Indo-Europeanbʰōl-

via English ‐or

StepLanguageWordMeaning
1English‐orCreates an agent noun, often from a verb, indicating a person or object (often machines or parts of them) that do the verb or part of speech with which they are formed
2Middle English-our
3Old French-eorAlternative form of -or
4Latin-ator-ator, -er; second-person singular future passive...
5Latin-tor-er
6Proto-Italic-tōrForms agent nouns to verb stems
7Proto-Indo-European-tōrDerives agent nouns from verbs, denoting someone...
8Proto-Indo-European-tor-s
Every word from Proto-Indo-European bʰōl-Every word from Proto-Indo-European bʰel-Every word from Proto-Indo-European bʰleh₁-
deflator — Etymology, Origin & Word History | Etymology Explorer