English → French
faithfully /BrE ˈfeɪθfʊli, 
ˈfeɪθf(ə)li, AmE ˈfeɪθfəli /
adverb
1 [follow, serve] fidèlement
2 (accurately) [reproduced, adapted] fidèlement; [recreated] avec exactitude
3 (in letter writing)
yours faithfully veuillez agréer, Monsieur/Madame, mes/nos sincères salutations