We could always choose to unify the prefixes. We have pansexual which is a Greek prefix but bisexual which is a Latin prefix. If we swap it for Greek it becomes disexual. That implies a grouping of straight, gay, and lesbian as either monosexuals (Greek) or unisexuals (Latin) which I don’t think I’ve ever seen used.

Looking at this table on Wikipedia you could come up with some funny (and nonsensical) derivations en.wikipedia.org/wiki/Numeral_prefix