authentiquement znamená v Angličtina

genuinely▼◼◼◼(truthfully, truly)
adverb
[UK: ˈdʒe.njʊɪn.li] [US: ˈdʒe.njə.wən.li]

authentically▼◼◼◼(in an authentic manner)
adverb
[UK: ɔː.ˈθen.tɪk.l̩i] [US: ˌɒ.ˈθen.tɪk.l̩i]