qunnoq:
Now, if you ask me, "how is your own {wa'vam jaj wIjIn} any different from the above", then I honestly can't provide a explanation. Perhaps it is a carry-over from what I would say in Greek : "we wish for this one day". And perhaps, I used it because there is a Greek word which means "unique", which can also be used to describe the "singular state" of an item.
And now that I'm thinking of it, perhaps here is what happened : Thinking in Greek I wanted to write "this one day" ; because in Klingon there is no word for "unique", I used the Klingon word {wa'} which would express the other meaning of the Greek "unique".
Usually the simplest solution is the best. {jajvam} is already unique by definition: i.e. this day vs. every other day (past, present, future). But if you really want to distinguish {jajvam} further, I think the closest idea in Klingon for "be unique" is {le'} "be special, be exceptional" : tlhIngan jabbI'ID le' Special Klingon issue (ST:Comm) puqloDwI' le'qu', Hoch jaj choquvmoH My dearest son, each day you redeem me. (Frasier) boSwI'vaD veyvam le' chenmoHlu' Collector's Edition. MKE Duj ghajchugh vay', cha'logh boq'egh qav'ap motlh; chen qav'ap le'. ghajwI'vaD qav'ap le' yIDIl. If [ship is] owned, pay owner twice the rental to which they are otherwise entitled. MKE vs. {le'be'} "be unexceptional, be nonspecific, be general" : nav HablI' le'be' general FAX (machine) Mark Mandel describes the origin of this in HQ 5.2: Since my office is in a different building from the company reception desk I prefer to give people the number of the FAX machine closest to my desk. I put both numbers on the letter- head, labeling them in English Klingon FAX and general FAX. Dr. Okrand suggested {le'be'} for general, and so of course that's what I used. There's also the similar pair {motlh} "be usual, be normal, be standard" : nay' motlh usual dish (a dish with a standard preparation technique) KGT nISwI' HIch motlh HoS Hal qengwI' naQ tIq je lurarlu'bogh 'oH tlhIngan nISwI' beH'e' The Klingon disruptor rifle is a standard hand held disruptor, attached to an extended power supply stock. S14 qughDo motlh: pIvlob vagh Normal Cruising Speed - Warp 5. KBoP Duj ghajchugh vay', cha'logh boq'egh qav'ap motlh; chen qav'ap le'. ghajwI'vaD qav'ap le' yIDIl. If [ship is] owned, pay owner twice the rental to which they are otherwise entitled. MKE vs. {motlhbe'} "be unusual" : tera'ngan motlhbe' SoH You are an unusual Terran. PK -- Voragh tlhIngan ghantoH pIn'a' Ca'Non Master of the Klingons