technical
■ verb dɪ'kʌseɪt , 'dɛkəseɪt (of two or more things) cross or intersect.
■ adjective dɪ'kʌsət
1》 shaped like an X.
2》 Botany (of leaves) arranged in opposite pairs.
Derivatives
decussation noun
Origin
C17: from L. decussatus , past participle of decussare 'divide crosswise', from decussis (describing the figure X, i.e. the Roman numeral for 10), from decem 'ten'.