ylinopeus

From yli- (“over-”) +‎ nopeus (“speed”).

• IPA^(key): /ˈyliˌnopeus/, [ˈyliˌno̞pe̞us̠]
• Rhymes: -opeus
• Syllabification^(key): y‧li‧no‧pe‧us

ylinopeus

1. The difference between the actual speed of a vehicle and the permitted speed.

   Ajoitte 120 km/t. Siinä on 30 km/t ylinopeutta.

   You were driving at 120 km/h. It is 30 km/h faster than the speed limit.

2. A speed that is higher than the speed limit; overspeed (speed that exceeds a reasonable or permitted rate)

   ajaa ylinopeutta ― to speed, overspeed (drive at a speed over the speed limit)

3. speeding (act of driving faster than the legal speed limit)

   Hän sai 100 $ sakon ylinopeudesta. ― He was fined $100 for speeding.

   Hänellä oli ylinopeutta. ― He was speeding.

• The Finnish police uses the term "excess speed" in their English communication to mean the "positive difference between the actual speed and the permitted speed" (sense #1). However, it seems that in English texts "excess speed" is chiefly used to mean "a speed that is higher than the permitted speed" (sense#2).