A new name for Bertha- HELP!

When I adopt a dog I like to use either the name from the shelter or a very same-sounding name. My family is considering adopting a dog named [name]Bertha[/name], but I actually want to avoid B names. The person who would be caring for the dog is my grandfather who has dementia. His dog, [name]Bailey[/name] recently passed away so I don"t want a name that could confuse him into saying [name]Bailey[/name].

Can you think of any names that sound like [name]Bertha[/name]. but wouldn’t confuse an elderly person.

All I can think of is [name]Eartha[/name]. I’m open to word names, names that aren’t feminine, whatever.

Thanks!

[name]Edna[/name]
[name]Gerda[/name]
[name]Greta[/name]
[name]Magda[/name]
[name]Martha[/name]
[name]Pearla[/name]

[name]Etta[/name]
[name]Ettie[/name]
[name]Marcia[/name]/[name]Marsha[/name]
[name]Tilda[/name]
[name]Irma[/name]

[name]Theda[/name]
[name]Erma[/name]