1In non-physical senses: in an adherent manner; with adherence; (in early use) specifically †by association, concomitantly (obsolete). rare in later use.
2By means of (a) physical attachment; adhesively.
adherently/ədˈhɪərəntli/ /ədˈhɪər(ə)ntli/ /adˈhɪərəntli/
Early 17th century; earliest use found in Robert Parker (?1564–1614), religious controversialist. From adherent + -ly.