kilʾayim כִּלְאַיִם ‘two’ (Hebrew)

Etymology^?: dual of keleʾ כֶּ֫לֶא ‘prison’ in the original sense of separation
Roots: כלא

kilʾayim n, m
1) two kinds, mixture
 1a) forbidden practice among cattle (cross breeding), seeds (sowing), and cloth garments (material)