Det är inte troligt att det är troligt att dina antaganden är korrekta.
När jag tittade omkring kunde jag inte hitta mycket som diskuterade om titlarna var ärftliga eller om det var baserat på varje enskild Elfs födelse. Några internetanvändare anser att titeln vid tidpunkten för förstörelsen av träden hade blivit en adelnstitel och är ärftlig, men med Elves långa liv kan det vara förvirrande.
Ett bra exempel för att stödja din punkt är Luthien. Trots att hennes pappa var en Calaquendi och hennes mamma en Maia, ansågs hon bland Moriquendi (indirekt stöds i följande citat).
he [Thingol] alone of all of the Sindar had seen with his own eyes the Trees in the day of their flowering, and king though he was of the Úmanyar, he was not counted among the Moriquendi, but with the Elves of the Light, mighty upon Middle-earth.
The Silmarillion - Of Thingol and Melian
Eftersom han var den enda Sindaren som hade sett trädens ljus, kan det antas att Luthien (en Sindarin elf) ansågs vara bland Moriquendi.
Calaquendi var - i sin enklaste mening - de som ursprungligen hade sett de två trädens ljus
These were the three kindreds of the Eldalië, who passing at length into the uttermost West in the days of the Trees are called the Calaquendi, Elves of the Light. But others of the Eldar there were who set out indeed upon the westward march, but became lost upon the long road, or turned aside, or lingered on the shores of Middle-earth; and these were for the most part of the kindred of the Teleri, as is told hereafter. They dwelt by the sea or wandered in the woods and mountains of the world, yet their hearts were turned towards the West. Those Elves the Calaquendi call the Úmanyar, since they came never to the land of Aman and the Blessed Realm; but the Úmanyar and the Avari alike they call the Moriquendi, Elves of the Darkness, for they never beheld the Light that was before the Sun and Moon
The Silmarillion - Of the Coming of the Elves and the Captivity of Melkor
Men termen användes också för att beskriva alla älvor som levt bland Valar i Aman:
In those days Elves and Men were of like stature and strength of body, but the Elves had greater wisdom, and skill, and beauty; and those who had dwelt in Valinor and looked upon the Powers as much surpassed the Dark Elves in these things as they in turn surpassed the people of mortal race. Only to the realm of Doriath, whose queen Melian was of the kindred of Valar, did the Sindar come near to match the Calaquendi of the Blessed Realm.
The Silmarillion - Of Men
Vilket stöds vidare i indexet:
Calaquendi : 'Elves of the Light', those Elves who lived or had lived in Aman (the High Elves).
The Silmarillion - Index
Således skulle Noldorens barn födda i Middle Earth alla vara av Moriquendi (Maeglin, Gil-galad och så vidare), men genom att bli undervisade av ljusets älvor skulle de i kunskap och makt övergå Sindar och andra "mörka älvor".
Juvelernas krig sköljer också lite ljus in i ämnet, men från långt tidigare utkast verkar det tyckas att användningen av Moriquendi blev att referera till alla som inte var Ämnen av Elwe.The Quenya forms were Kalaquendi and Moriquendi. The Kalaquendi in Quenya applied only to the Elves who actually lived or had lived in Aman; and the Moriquendi was applied to all others, whether they had come on the March or not. The latter were regarded as greatly inferior to the Kalaquendi, who had experienced the Light of Valinor, and had also acquired far greater knowledge and powers by their association with the Valar and Maiar.
In the period of Exile the Ñoldor modified their use of these terms, which was offensive to the Sindar. Kalaquendi went out of use, except in written Ñoldorin lore. Moriquendi was now applied to all other Elves, except the Ñoldor and Sindar, that is to Avari or to any kind of Elves that at the time of the coming of the Noldor had not long dwelt in Beleriand and were not subjects of Elwë. It was never applied, however, to any but Elvish peoples. The old distinction, when made, was represented by the new terms Amanyar 'those of Aman', and Úamanyar or Úmanyar 'those not of Aman', beside the longer forms Amaneldi and Úmaneldi. History of Middle-earth IX, The War of The Jewels - Quendi and Eldar