Template:comma/documentation

This template is used to display either nothing, a comma, or the word and, depending on its parameters. It is used when displaying a comma-separated list of items when the number of items is not known.

As of 2023 it seems to only be used in, which is itself used in Swadesh lists.

Parameters
This template takes 1 and 2. If 1 is not given or is empty, nothing is displayed. If only 1 has a nonempty value, then ", " (a comma followed by a space) is displayed. If both parameters have nonempty values, then " and " this displayed.