credit
/ˈkredɪt/·크레딧·noun, verb
trust extended; recognition; an academic unit
LatinCEFR A2
Root
Latin 'credere' (to believe, trust)
Latin creditum (a thing entrusted) → Italian credito → Middle French crédit → English credit
In a word
Latin credere = 'to believe'. A credit is "something entrusted". Money lent because you're trusted, a course unit because your work is trusted, a name attached because your hand is trusted — all of these are belief made into form. The "credit" on a credit card is, by root, "I believe in you."
Examples
I bought it on credit.
She earned three credits this semester.
Give him credit for his hard work.
Related
crediblecreedincrediblediscreditaccredit