The name that is transliterated as «Cnidus» in English means «nettle.» (Source: Cornwall / Smith 1997 )
In Libras (Brazilian Sign Language) it is translated with a sign that combines the signs for «angry» (another possible meaning of the name) and «strong wind» because Paul and his companions encountered a strong gale in Cnidus that prevented them from docking in that region (see Acts 27:7). (Source: Missão Kophós )
«Cnidus» in Libras (source )
For more information on translations of proper names with sign language see Sign Language Bible Translations Have Something to Say to Hearing Christians .