tolvri lujvo

x1 is a coward in activity x2 (event) by standard x3.

Cf. to'e, virnu, pronalka'e, u'onai.

In notes:

pronalka'e
k1=f1 is incapable of opposing f2 (person/force/mass) about f3 (abstract) underconditions k3 (event/state).