WHY?
Why do ships and aircraft use 'mayday' as their call for help?
BECAUSE:
This comes from the French word m'aidez -meaning 'help me' --
and is pronounced, approximately, 'mayday.'
WHY
Why are zero scores in tennis called 'love'?
BECAUSE:
In France , where tennis became popular, the round zero on the
scoreboard looked like an egg and was called 'l'oeuf,' which is French
for 'the egg.' When tennis was introduced in the US , Americans
(mis)pronounced it 'love.'