decussate
verb
• (of two or more things) cross or intersect each other to form an X.
• "the fibres decussate in the collar"
decussate
adjective
• shaped like an X.
Origin:
mid 17th century (as a verb): from Latin decussatus, past participle of decussare ‘divide crosswise’, from decussis (describing the figure X, i.e. the Roman numeral for the number 10), from decem ‘ten’.
