gregori zei nanca zei-lujvo

n1 is n2 years in duration by the Gregorian calendar.

Cf. detrgregori, gregori zei ctona'a.

On affix form:

nanca
x1 is x2 years in duration (default is 1 year) by standard x3; (adjective:) x1 is annual.
zekri
x1 (event/state) is a punishable crime/[taboo/sin] to people/culture/judges/jury x2.

In definition:

zeiljvo
x1 (text) is a Lojban compound predicate using the particle “zei”; with meaning x2, arguments x3, built from metaphor (tanru) x4.
zejvo
x1 (text) is a Lojban compound predicate using the particle “zei”; with meaning x2, arguments x3, built from metaphor (tanru) x4.
zo si si zei fa'o
x1 is a nonsense zei-lujvo using parts x2, silly by standard x3.

In notes:

detke'u
The date [day,week,month,year] x1=d1=k1 is recurrence/repetition of the date [day,week,month,year] of the first event x2=d2, for the x3=k3'rd time, in system x4.
detrgregori
x1 pertains to the Gregorian calendar.
jednpa
x1 (event/state) is on Monday or the first day of a week x2 in system x3.
masnpa
x1 (event/state) is in the first month/January of a year x2 in system x3.