daily(that occurs every day) adjective [UK: ˈdeɪ.li] [US: ˈdeɪ.li]We work daily. = Lavoriamo quotidianamente.
everyday(appropriate for ordinary use, rather than for special occasions) adjective [UK: ˈev.rɪ.deɪ] [US: ˈev.rɪ.deɪ]Everyday life bores me. = La vita quotidiana mi annoia.
quotidian(daily) adjective [UK: kwəʊ.ˈtɪ.dɪən] [US: kwoʊ.ˈtɪ.dɪən]Quotidian life bores me. = La vita quotidiana mi annoia.