jeftu -jef- gismu

x1 is x2 weeks in duration (default is 1 week) by standard x3.

Re. x3, a week may be more or less than seven days, classically being tied to the time between trips to the marketplace; this week (= cabjeftu); next week (= bavlamjeftu); last week (= prulamjeftu). See also detri, djedi, masti, nanca.

In notes:

detri
x1 is the date [day,{week},{month},year] of event/state x2, at location x3, by calendar x4.
djedi
x1 is x2 full days in duration (default is 1 day) by standard x3; (adjective:) x1 is diurnal.
masti
x1 is x2 months in duration (default is 1 month) by month standard x3.
nanca
x1 is x2 years in duration (default is 1 year) by standard x3; (adjective:) x1 is annual.
de'i
detri modal, 1st place: on date/dated ... ; attaches date and/or time.
jefke'u
k1 (event) occurs weekly as a repetition of (abstract) k2 repeating (li) k3 times (default: indefinitely)
jefsurdei
x1 is a weekend (typical resting day of the week) of week x2, according to culture/custom x3
jefydeidetri
x1 (number) is the date/day notation of the week of event/state x2, in system x3.
jefydiknalgundei
x1=di1=dj1 is a regularly-occurring period of days off work [weekend] lasting x2=dj2 days, recurring every x3=j2=di3 weeks (default 1), for worker x4=g1, at job x5=g2
jefygundei
x1 is a weekday (typical working day of the week) of week x2, according to culture/custom x3
ma'irjefydetri
x1 (number) is the week notation of the month of event/state x2, in system x3.
na'arjefydetri
x1 (number) is the week notation of the year of event/state x2, in system x3.
seljeftu
x2=j1 is x1=j2 weeks in duration by standard x3=j3.
terjeftu
x3=j1 is x2=j2 weeks in duration by standard x1=j3.
datro
x1 (event) is dated/pertaining to day/occurring on day x2 of month x3 of year x4 in calendar x5
jei'o (exp!)
x1 is PA weeks in duration by standard x2.
jedlno
x1 (event/state) is on Sunday or the zeroth day of a week x2 in system x3.
jedlre
x1 (event/state) is on Tuesday or the second day of a week x2 in system x3.
jednci
x1 (event/state) is on Wednesday or the third day of a week x2 in system x3.
jednmu
x1 (event/state) is on Friday or the fifth day of a week x2 in system x3.
jednpa
x1 (event/state) is on Monday or the first day of a week x2 in system x3.
jednre
x1 (event/state) is on Tuesday or the second day of a week x2 in system x3.
jednvo
x1 (event/state) is on Thursday or the fourth day of a week x2 in system x3.
jednxa
x1 (event/state) is on Saturday or the sixth day of a week x2 in system x3.
jednze
x1 (event/state) is on Sunday or the seventh day of a week x2 in system x3.
uigdei
x1 is the x2th day of week number x3 of year x4, under calendar/system x5