- transversal (adj.)[transversal 词源字典]
- "running or lying across," mid-15c., from Medieval Latin transversalis (13c.), from transvers-, stem of transvertere (see transverse). Earlier in the same sense was transversary (c. 1400). As a noun, from 1590s. Related: Transversally.[transversal etymology, transversal origin, 英语词源]