IPA: /lɪˈniːəli/
KK: /lɪˈniːəli/
In a way that relates to direct descent or ancestry.
The family tree shows how they are lineally connected to the royal family.
Lineally → It is formed from "linea" (from Latin, meaning line) and the suffix "-ally" (meaning in a manner relating to). The word "lineally" refers to something that is in a manner relating to a line, often used in the context of descent or inheritance along a direct line.
Think of 'line' as a straight path or connection, and remember that 'lineally' means relating to that direct line, especially in family or inheritance.