/soh lair"euh/ ; Sp. /saw le"rddah/ , n.
1. (esp. in Spain) a series of casks, graded according to age, in which sherries and brandies are stored while maturing.
2. a classification for the sherries or brandies having the greatest maturity in a solera.
[ solaria, equiv. to L sol ( um ) base, ground ( > Sp suelo ) + -aria -ARY; Cf. vino de solera mature wine (presumably from the bottom range of casks) used to fortify younger wine ]