It derives from the pet name Atkin, which is a diminutive of Adam. In Scotland the name is more usually rendered as Acheson, while it is more usually found rendered as Atkinson in England, where it is particularly common in the north.
By the time babies are between 9 and 12 months old, they're often ready to make the switch from bottle to cup. At this age, they're more interested in what's going on around them than they are in sucking on a breast or bottle. But phasing out the bottle this early means planning ahead. Here are some tips:
Do not feed your baby directly from the jar because bacteria from the baby's mouth can contaminate the remaining food. If you refrigerate opened jars of baby food, it's best to throw away anything not eaten within a day or two. Around 6 months of age is a good time to introduce your baby to a cup. Buy one with large handles and a lid (a sippy cup), and teach your baby how to hold and drink from it. You might need to try a few different cups to find one that works for your child. Use water at first to avoid messy clean-ups.