Where does “cust” come from?

cust (English) comes from English custody, from Latin custōdia, from Latin -ia, from Latin -ius, from Proto-Italic -jōs, from Proto-Indo-European -yós — Creates adjectives from noun or verb stems.

cust (English): Abbreviation of custody; Abbreviation of customer

Definitions

  1. Abbreviation of custody; Abbreviation of customer

Ancestry of “cust”, step by step

cust traces back through two separate lines of ancestry.

via English custody

StepLanguageWordMeaning
1EnglishcustodyThe legal right to take care of something or...
2Latincustōdiaprotection, safekeeping
3Latin-iaUsed to form a feminine abstract noun, usually...
4Latin-iusforming adjectives from nouns; nominative neuter...
5Proto-Italic-jōsForms comparative adjectives
6Proto-Indo-European-yósCreates adjectives from noun or verb stems

via English customer

StepLanguageWordMeaning
1EnglishcustomerA patron, a client; one who purchases or receives...
2Middle EnglishcustumerA customs officer; a collector of import or export duties
3Old Frenchcoustumier
4Medieval Latincustumariusa toll-gatherer, tax-collector; pertaining to...
5Latincustumacustom, tax
Every word from Proto-Indo-European -yósEvery word from Latin -iaEvery word from Latin -ius