religious (adj.)

c. 1200, "devout, pious, imbued with or expressive of religious devotion," used of Christians, Jews, pagans; also "belonging to a religious order," from Anglo-French religius, Old French religious (12c., Modern French religieux) and directly from Latin religiosus, "pious, devout, reverencing or fearing the gods," also "religiously careful, anxious, or scrupulous," from religio "religious observance; holiness" (see religion).

The meaning "pertaining to religion" is from 1530s. The transferred sense of "scrupulous, exact, conscientious" is recorded from 1590s but restores or revives a sense right at home among the superstitious Romans. As a noun, from c. 1200 as "persons bound by vow to a religious order;" from late 14c. as "pious persons, the devout." Related: Religiousness.

updated on June 25, 2021

Definitions of religious from WordNet
religious (adj.)
concerned with sacred matters or religion or the church;
religious texts
a member of a religious order
Synonyms: spiritual
religious (adj.)
having or showing belief in and reverence for a deity;
a religious man
religious attitude
religious (adj.)
of or relating to clergy bound by monastic vows;
the religious or regular clergy conducts the service
religious (adj.)
extremely scrupulous and conscientious;
religious in observing the rules of health
religious (n.)
a member of a religious order who is bound by vows of poverty and chastity and obedience;
Etymologies are not definitions. From, not affiliated with etymonline.