-tava

Etymology
From, , from  (passive infix) +  (active participle). The weak grade has been generalized like in.

Usage notes

 * Formed by using the past passive stem and appending, appearing either as or  depending on the verb.
 * Some inflected forms have specific uses:
 * genitive singular: used with verbs of reporting or observing to refer to the action being done by someone (passively) according to that report or observation.
 * inessive plural: used to express possibility or plausibility of an action.
 * inessive plural: used to express possibility or plausibility of an action.