I'm revising my comments as I thought of a better idea:
Mao would be [nWF] meaning moves as Wazir then Ferz in the same move and
cannot jump. [WF] would be a synonym for N, as would [FW]. A piece that
could move a a Mao or could stop on the first square would be W[nWF] (the
Rhino from Captain Spaulding Chess, for example). A hypothetical piece
that could move as a Mao only if the orthogonally adjacent square is
occupied could be [jWF].
This would be useful for bent riders, too: a Gryphon would be F[nFR]
(or F[nFWW]), while the variety of Gryphon that can't move a single
diagonal step would be [nFR] (or [nFWW]).