I have, it seems, a childish weakness for words that sound like what they mean. Not in the crude onomatopoetic sense (or not only in that sense) but in a rhythmically or associatively suggestive way. I think it’s the rhythm of this one that makes it fall under this category:
judder: per the OED, “To shake violently, esp. of the mechanism in cars, cameras, etc.; also of the voice in singing, to oscillate between greater and less intensity.” — I think the oscillation is there in the violent shake too, hence the association with mechanisms.
I find myself reaching for this word a lot, and I think it’s the discontinuity in the middle, the “dd” that cuts off the sound abruptly, like your teeth coming together as you are shaken rhythmically by a crude, juddering engine. I also like to use it for things which judder to a halt, in which case you can imagine the “jud” repeating and the “der” as the final sigh of repose. Judjudjudjudjudder. Phew.