ElisaLisaLisbet/Lisbeth
LissaLissie/Lissy
Bet
LizzyEllaElleLisabet
Liss/Lyss
Lizbet/Lizbeth
For that time, I'd be inclined to say
Eliza or
Betsy if she's adult,
Lisbet for a teen, but Lissy or
Elsie if she's younger. And ditto on
Beth sounding shy.
I think
Abby's a little bit of a stretch, sorry. :)