UrsprungFrom Old Swedish þvā, from Old Norse þvá, from Proto-Germanic *þwahaną. The stem tvag- has been restored from the past participle and supine of två; tvagen and tvagit respectively. Compare slå with past participle/supine slagen/slagit.
Formertvager(present) · tvog(preterite) · tvagit(supine) · tvag(imperative) · tvaga(active, infinitive) · tvagas(infinitive, passive) · tvagit(active, supine) · tvagits(passive, supine) · tvag(active, imperative) · -(imperative, passive) · tvagen(active, archaic, error-unrecognized-form) · -(archaic, error-unrecognized-form, passive) · tvager(active, indicative, present) · tvog(active, indicative, past) · tvags(indicative, passive, present) · tvages(indicative, passive, present) · tvogs(indicative, passive, past) · tvaga(active, archaic, error-unrecognized-form, present) · tvogo(active, archaic, error-unrecognized-form, past) · tvagas(archaic, error-unrecognized-form, passive, present)