saltant
Leaping; jumping; dancing.
In a leaping position; springing forward; salient.
Why the devil, can you deny that you've not a partiality for cats, ha! ha! ha! […] the feline species is preserved—the crest is very evident a kitten saltant, ha! heh! heh!
Where it comes from
From Latin saltans, present participle of saltare (“to dance”), v. intens. from salire (“to leap”): compare French sautant. See sally (verb).
Adapted from the Wiktionary entry saltant (CC BY-SA 4.0).