The Homeric Greek word κραιπνός
Word κραιπνός
k r aj p n ο. ς
IPA krajpnos
Meaning swift, rushing
Synonyms καρπάλιμος, λαιψηρός, θοάς, θοῦρος, ταχύς, ὠκύς

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Iliad

Other words that might be of interest
ἀική ‘rapid flight, rush, impetus’, ἐρωέω ‘rush, rush forth’, ἐρωή ‘any quick motion, rush, force’, οἶμα ‘spring, rush, swoop’