A particular time, especially as marked by certain circumstances or occurrences.
A special or important time, event, ceremony, celebration, etc.
A convenient or favorable time, → opportunity,
or juncture (Dictionary.com).
Etymology (EN): M.E. occasioun from O.Fr. ochaison, ocasion “cause, reason, pretext;
opportunity,” from L. occasionem (nominative occasio)
“appropriate time,” from occasum, occasus “fall; sunset,”
p.p. of occidere “fall down, go down,” from ob
“down, away” + cadere “to fall,” → case.
Etymology (PE): Âkatan, from prefix â- + katan “to fall,” cf.
Laki: katen “to fall,” kat “he/she fell,” beko! “fall!” (an insult);
katyâ “fallen;” Lori: kat “event, error;” Kurd. (Soriani): kawtin
“to fall, befall,” kett “fallen;”
Kurd. (Kurmanji): da.ketin “to fall down;”
Lârestâni: kata “to fall;” Garkuyeyi: darkat, varkat “he/she fell
(sudden death);” Gilaki (Langarud, Tâleš): katan “to fall,” bakatam
“I fell,” dakatan “to fall (in a marsh, in a pit),” vakatan “to fall from
tiredness, be exhausted,” fakatan “to fall from (i.e., lose) reputation;”
Tabari: dakətə “fallen,” dakətən “to crash down,”
dakət.gu “stray cow;” Proto-Iranian *kat- “to fall;” cf.
L. cadere “to fall,” → case, Pers. kâté.