Enema
来自Big Physics
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late Middle English: via late Latin from Greek, from enienai ‘send or put in’, from en- ‘in’ + hienai ‘send’.
wiktionary
From Late Latin enema, from Ancient Greek ἔνεμα(énema, “injection”), from ἐνίηναι(eníēnai, “to send in, inject”), from ἐν(en, “in”) + ἱέναι(hiénai, “to send, throw”).
etymonline
enema (n.)
early 15c., via Medieval Latin, from Greek enema "injection," from enienai "to send in, inject," from en "in" (from PIE root *en "in") + hienai "to send, throw" (from PIE root *ye- "to throw, impel").
