A is for Angel One.
B is for By Any Other Name.
C is for the Conscience of the King.
D is for Darmok.
E is for Excalibur.
F is for For the World is Hollow and I have Touched the Sky.
G is for Giant Ferengi Codpieces.
H is for Hamalki, K'T'Lk's species from Diane Duane's novels.
I is for Interstellar law.
J is for Jerk, which Kirk is according to "The Practical Joker"
K is for Klingon bastards!
L is for Timor Landi.
M is for Mintaka.
N is for Nomad.
O is for Organians. As high above us on the evolutionary scale as we are above the amoeba.
P is for the phony phasers that Pandronian Ari bn Bem surreptitiously swapped out after dumping Kirk and Spock in a lake.
Q is for Quinn.
R is for Ripples in Space Time.
S is for Spiroid epsilon waves.
T is for Terratin (definitely a low-hanging fruit given S).
U is for United Earth Space Probe Agency.
V is for Vrenn, the birth-name (eventually ennobled as Krenn) of the main protagonist of John Ford's Klingon historical novel, The Final Reflection.
W is for Nuclear Wessles
X is for Xorm, a sentient species that Mβ says were mentioned in Death of a Neutron Star, a quarter-century-old(!) VOY book I've completely forgotten.