>>325734I have an excel spreadsheet full of hundreds of words I read that I didn't know or that I think sound nice. Recent additions:
Rankle
Sodality
Élan
Diffidence
Tawdry
>>325735I find it's easier to remember if you think about their etymology. E.g. undulate has "und—" as the root, which means wave iirc. It's related to words like inundate and, more obviously, undulant. Not related to ululate at all, but looks similar.