202. The suffix "-ec-" is used to form words indicating the "abstract
quality" of that which is expressed in the root, or formation, to which
it is attached:
amikeco = friendship. fleksebleco = flexibility.
ofteco = frequency. patreco = fatherhood.
indeco = worthiness. patrineco = motherhood.
dankemeco = thankfulness. maltrankvileco = uneasiness.