plexus
Could not find plexum in Logeion dictionaries.
plexum masculine accusative singular of plexus
plexus, a, um, Part. and P. a., from 1. plecto.
plexus, ūs, m. [1. plecto],
- a twining, plaiting, braid (poet.), Manil. 5, 147 dub. (al. flexum, fluctum).
1 plexus, a, um, part. p. de plecto 2 .
2 plexŭs, ūs, m. , entrelacement, enlacement : *Manil. 5, 147.