i was going to add something else to this but instead i got to thinking and i was like huh. what could you use.
in most languages the word for ‘mother’ usually starts with an M, because phonetically [m] is one of the easiest sounds for a newborn to make when they start babbling, and mothers tend to be the one most around the child. so in my mind that crosses M off the list, because it’s automatically associated with a feminine figure
similarly, ‘father’ tends to start with D, T, P, or B. (phonetically these sounds are very close together; [p, b] and [d, t] are all only different because of being voiced or unvoiced.) these are also phonetically easy letters and ones kids pick up on earlier.
now the hard sounds for kids are the following: [ɹ, d͡ʒ, tʃ, θ, ð] or in normal speak: the English R, the “j” or “dge” sound in “judge,” the “th” sound in “thigh” and the “th” sound in “the.” and we don’t want kids unable to say their parent’s name for years, so those are also off the list.
additionally, it’s easiest for young kids to just repeat the same sound twice rather than figuring out the tongue gymnastics of putting different sounds together, which is why kids will say Ma-Ma or Da-Da and not Ma-Mo or Da-Po. and we’ll want to stick with low back vowels like “ah” and avoid ones like the hard “i” or “ee.”
so what does that leave us? when we want a sound kids can learn easily and early but don’t want to just put a funky spin on “mama” or “dada”?
my suggestions: G, K, W, L. i personally lean towards W and L. they’re called liquids, since they’re the consonants that kind of aren’t consonants, and kids (and ESL learners) will tend to swap out the English R for a W or L until they can learn the R.
if i ever have a child, they’ll start calling me Wawa. then when they get older, they’ll call me Wala, or maybe even Wally.
and then, once they’re finally phonetically developed, they can call me by my true title as their nonbinary guardian for their 18+ years: