Your search for the postposition -ká after, for in benefactive has returned 6 entries

-ká

Chidí ła’ bíká ’í’iishłaa.

car some 3-for 1-order.P
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I ordered a car.

Mary yíká hoolne’.

Mary 3-for 3-call.P
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S/he called for Mary.

Na’nízhoozhídą́ą́’ shíká bił ’oolwoł.

Gallup 1-for 3-with 3-drive.I
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S/he is driving from Gallup to get me.

Obi-Wan Kenobi, shíká ’ajoolwod.

Obi-Wan Kenobi 1-after indef-4-run.P
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Obi-Wan Kenobi helped me.

Shíká ’anilyeed, Obi-Wan Kenobi.

1-for 2-run.F Obi-Wan Kenob