tcaci -cac- gismu

x1 is a custom/habit/[ritual/rut] of x2 under conditions x3.

Also: x1 is customary/usual/the practice. See also fadni, kampu, lakne, jinzi, ckaji, cnano, tarti, ritli, javni, zekri.

In notes:

ckaji
x1 has/is characterized by property/feature/trait/aspect/dimension x2 (ka); x2 is manifest in x1.
cnano
x1 [value] is a norm/average in property/amount x2 (ka/ni) among x3(s) (set) by standard x4.
fadni
x1 [member] is ordinary/common/typical/usual in property x2 (ka) among members of x3 (set).
javni
x1 is a rule prescribing/mandating/requiring x2 (event/state) within system/community x3.
jinzi
x1 (property - ka) is an innate/inherent/intrinsic/natural property/quality/aspect of x2.
kampu
x1 (property - ka) is common/general/universal among members of set x2 (complete set).
lakne
x1 (event/state/property) is probable/likely under conditions x2.
ritli
x1 is a rite/ceremony/ritual for purpose/goal x2, by custom/in community x3, with form/rules x4.
tarti
x1 behaves/conducts oneself as/in-manner x2 (event/property) under conditions x3.
zekri
x1 (event/state) is a punishable crime/[taboo/sin] to people/culture/judges/jury x2.
cacysku
c1=t2 customarily expresses c2 to c3 via medium c4 under conditions t3.
menytcaci
t1 is the psychological disposition of t2=m2.
zdizuca
x1 does x2 as a hobby; x2 is a hobby of x1