faith ‧ ful ‧ ly /ˈfeɪθf ə l-i/ BrE AmE adverb
[ Word Family: noun : ↑ faith , ↑ faithfulness ≠ ↑ unfaithfulness , ↑ faithful , ↑ faithlessness ; adjective : ↑ faithful ≠ ↑ unfaithful , ↑ faithless ; adverb : ↑ faithfully ≠ ↑ unfaithfully ]
1 . in a loyal way:
He had served the family faithfully for 40 years.
Ann faithfully promised never to tell my secret.
2 . in a regular way:
She wrote faithfully in her journal every day.
Every year, we faithfully make a trip up there to see him.
3 . Yours faithfully British English the usual polite way of ending a formal letter, which you have begun with Dear Sir or Dear Madam
⇨ Yours sincerely at ↑ sincerely