By and by and Infra

By and by adverb - At or within a short time.

Infra and by and by are semantically related in later topic. In some cases you can use "Infra" instead an adverb phrase "By and by", when it comes to topics like afterward, happening after.

Infra adverb - (in writing) see below.

By and by and infra are semantically related in later topic. You can use "By and by" instead an adverb "Infra", if it concerns topics such as afterward, happening after.