pol- (1) vb. "can" = have physical power and ability, as in polin quetë "I can speak (because mouth and tongue are free)". Cf. ista-, lerta- as verbs "can" with somewhat different shades of meaning. (VT41:6, PE17:181)
Quenya
lertan quetë
I can speak, I am free to speak
lerta-
can
pol-
can
lerta- vb. "can" in the sense "be free to do", being under no restraint (physical or other). Lertan quetë "I can speak (because I am free to do so, there being no obstacle of promise, secrecy, or duty)". Where the absence of a physical restraint is considered, this verb can be used in much the same sense as pol- (VT41:6)