Re: [tied] The dual.

The other obvious place to find duals is of course Sanskrit. Apart from
obvious uses, Skt uses the dual in dvandva compounds (honour-dishonour,
pleasure-pain, living-non-living etc) when there are two elements. It uses
the plural when there are more than two.

For example, Gita 6:7 has (ignoring vowel length)
sitosnasukhaduhkhesu (cold-heat-pleasure-pain) locative plural
and
manapamanayos (honour-dishnour) locative dual.

Peter