Added 9 October 2026
sincerely
/sɪnˈsɪəli/ adverb
In Latin: sincērē Wiktionary
adverb Definition from Wiktionary (CC BY-SA). Pronunciation from Wiktionary, via Kaikki.org. More about sincerely at Wordnik → Where our words come from →
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In a sincere or earnest manner; honestly.
I sincerely hope they make it home safely.
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A conventional formula for ending a letter, used when the salutation addresses the person for whom the letter is intended by his or her name.
Please consider the proposal carefully and let me know what you decide.Sincerely,Fred
Origin
From sincere + -ly, from Latin sincērus (“pure, clean, sound”).
From Wiktionary, via Kaikki.org (CC BY-SA)