Spinal
来自Big Physics
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late 16th century: from late Latin spinalis, from Latin spina (see spine).
wiktionary
Borrowed from Late Latin spīnālis(“of or belonging to the spine”), from spīna(“a prickle, spine”) + -ālis(“-al”, adjectival suffix). Equivalent to spine + -al.
etymonline
spinal (adj.)
1570s, from Late Latin spinalis "of or pertaining to a thorn or the spine," from Latin spina (see spine). Spinal tap recorded from 1960.
