lvstr0='*[?&*]*'
...
lvstr2='*['\''`~<>:#$?&* -]*'
lvstr=\$lvstr2

$ lvstrn=`eval echo $lvstr`
$ svf lvstr
 lvstr='$lvstr2'
 lvstr0='*[?&*]*'
 lvstr2='*['\''`~<>:#$?&* -]*'
 lvstrn='*['\''`~<>:#$?&* -]*'

a=123
b='The interpolated value for \$a is $a'

$ c=`eval echo $b`; svs c
c=The interpolated value for $a is 123

These are no good:

$ c="$b"; svs c
c=$a

$ eval c="$b"
bash: want: command not found

$ v=PATH

$ echo \$"$v"
$PATH

$ eval echo \$"$v"
/export/home/tong/bin:/export/home/tong/local/bin:/usr/lib:/shared/local/bin:/usr/local/bin:/usr/shared/bin:/opt/gnu/bin:/bin:/shared/bin:/shared/sbin:/etc:/shared/ucb:/shared/ccs/bin:/shared/openwin/bin:/shared/dt/bin:/export/home/tong/bin/pf:/export/home/tong/bin/tcltk:.

b=a
a='ls -l'

$ echo \$"$b"
$a
$ eval \$"$b"
total 256
-rw-r-----   1 tong     tong         8262 Aug 17 17:09 Makefile
[...]

— long list pwd

$ c=`eval echo "b de-refered to \\$b, which is "  \\$"$b" `; svs c
c=b de-refered to a, which is ls -l

These are no good:

$ c=`eval echo 'b de-refered to \\$b, which is  \\$"$b"' `; svs c
c=b de-refered to $b, which is $a

$ c=`eval echo 'b de-refered to \\$b, which is  \\\\$"$b"' `; svs c
c=b de-refered to $b, which is \a

$ c=`eval echo 'b de-refered to \\$b, which is  \\\\\\$"$b"' `; svs c
c=b de-refered to $b, which is \$a