the.com/mirth

the involuntary proof that being alive is occasionally hilarious.

means Lighthearted gladness and amusement, the kind that bubbles up as laughter and merriment.

from From Old English 'myrgth,' meaning joy or pleasure, built on the adjective 'myrige' (pleasant, agreeable) — the same root that gives us 'merry.' It traces back to a Germanic sense of something short and sweet, possibly linked to a Proto-Indo-European root meaning 'brief,' as if the oldest speakers already knew that the best joys, like the best laughs, never last quite long enough.

old roots
From Old English myrgth, sibling to merry.
body hijack
Real laughter is reflexive, almost impossible to fake convincingly.
contagious
Hearing genuine laughter triggers your own brain's mirror response.
survival edge
Shared mirth bonds groups faster than almost anything.
rare word
Now mostly survives in the phrase mirthless smile.
for instance

laugh track — artificial audience laughter added to tv shows like 'i love lucy' starting in the 1950s to signal when to find something funny

whoopee cushion — rubber novelty item that makes fart sounds when sat on, popularized by s.s. adams company since 1892

three stooges — comedy trio (moe, larry, curly) known for slapstick and physical humor from 1922-1970

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