ulquordaëälathdar: (lit. “impossible-knowledge-person”, derog.) Agnostic; (Flamic) an adherent to the Agnostic Heresy; one who holds that certain or all knowledge cannot be known, i.e., is intrinsically unknowable, rather than simply unknown, or circumstantially unknowable due to lack of necessary epistemic tools or cognitive capacity.

from ulquordaëlin (“impossible”, itself from ulquor, the degree quantifier of absolute absence, and daëlin “probability, chance”), alath (“knowledge”) and dar (“person”).

vaníälathdar: (lit. “beyond-knowledge-person”) Ultracrepidarian, or less formally, “bullshitter”; one who holds and/or gives opinions on matters which are beyond their knowledge.

sef-affiën: flying fish; lit. “spume-dancer”

from Old Cestian sef (“spume, the foam at the crest of a wave”) and affiën (“dancer, to dance”).

(Trying out a new irregular feature…)

alathkháln (n.): The pain that comes from new understanding; the quale of collapsing certainty.