| A | B |
| fluctus/us | wave |
| impetus/us | attack |
| adventus/us | arrival |
| metus/us | fear, dread, anxiety |
| metuo/ere/metui | fear |
| apparatus/us | equipment, display |
| tumultus/us | confusion, uproar, disturbance |
| iussus/us | an order, command |
| iubeo/ere/iussi/iussum | to order |
| vagitus/us | crying, wailing |
| equitatus/us | cavalry |
| equus/i | horse |
| eques/equitis | horseman, cavalryman |
| natus/i | son (N.B. 2nd decl) |
| nata/ae | daughter |
| natus/us | birth (don't confuse with natus/i) |
| maior natu | older(lit. "greater by birth) |
| minor natu | younger (lit. "lesser by birth") |
| maximus natu | oldest (lit. "greatest by birth") |
| minimus natu | youngest (lit. "least by birth") |
| ānus/us | ring; fundament (i.e. anus) |
| anus/us (no macron) | old woman; old hag |
| ortus/us | a rising; origin |
| ortu solis | sunrise (lit. "a rising of the sun") |
| occasus/us | a falling/setting |
| occasu solis | sunset (lit. "a setting of the sun") |
| complexus/us | an embrace |
| amplexus/us | an embrace |
| noctu | at night |
| vultus/us | face; expression, appearance |
| casus/us | a fall; accident; occasion |
| casu (idiom) | by chance |
| aditus/us | approach; entrance |
| reditus/us | return |
| conspectus/us | sight |
| magistratus/us | magistrate; official |
| currus/us | chariot (be careful! remember cursus/us - course) |
| ululatus/us | howling, shrieking, wailing |
| situs/us | site; situation |
| in situ | in its (original) place/location |