earnest
UK: ˈɜː.nɪst | US: ˈɝː.nɪst
adj. serious and sincere in intention or effort
n. a pledge or token of sincerity (archaic)
The word "earnest" traces back to Old English eornost, meaning "zeal, seriousness." It evolved from Proto-Germanic ernustuz, conveying steadfastness or commitment. The modern sense of "sincere" emerged by the 14th century, influenced by its use in pledges (e.g., "earnest money" as a deposit). The root earn- shares kinship with German Ernst (seriousness), reflecting a shared Germanic emphasis on solemnity.
She gave an earnest apology for her mistake.
His earnest efforts to improve impressed the team.
The politician spoke with earnest conviction.
In medieval times, a ring might be given as earnest of a promise.
They debated the issue in earnest after the initial jokes.