Wikipedia says that ‘the many white spiders seen at this time of the year have been associated with the norns of Norse folklore or medieval witches, that’s why it is vénasszonyok nyara’.
I read at some site that the many spiders’ webs seen at this time of the year have been associated with the grey hair of the old ladies, so that’s why it is vénasszonyok nyara.
indán nyár – indian summer
vénasszony – old lady; old woman; crone; tabby
asszony – woman (who has a husband)
nő – woman
vén – old; very old
öreg – old
koros – old
idős – old
agg – old; very old
aggastyán – old man; antediluvian
agglegény – old man without a wife or woman; old bachelor
kor – age
2) weather (also as ‘időjárás’)
legény – young man; lad; bachelor