My colleagues in India frequently use "avail" to mean "use" or "take advantage of" as in the following example:
Avail our special offer for this event.
I have never seen "avail" used in the manner; and judging by Merriam-Webster, I shouldn't be seeing it now :-) But I am, so I'd like to know what I might be missing.
Note: British English is the dialect my colleagues are most familiar with.
Thanks in advance.