ritual

nouns

any customary observance or practice
is derived from
the prescribed procedure for conducting religious ceremonies
is derived from
is a type of (narrower)
a customary way of operation or behavior
"it is their practice to give annual raises"; "they changed their dietary pattern"
stereotyped behavior
is a type of (narrower)
(psychology) an automatic pattern of behavior in reaction to a specific situation; may be inherited or acquired through frequent repetition
"owls have nocturnal habits"; "she had a habit twirling the ends of her hair"; "long use had hardened him to it"

adjectives

of or relating to or characteristic of religious rituals
"ritual killing"
is derived from
pertains to
of or relating to or employed in social rites or rituals
"a ritual dance of Haiti"; "sedate little colonial tribe with its ritual tea parties"- Nadine Gordimer
is derived from
pertains to