Comments:In Turk. one has to accept secondary fronting (*titir < *tɨtɨr - if the attested form is not actually tɨtɨr, just wrongly vocalized). It is also tempting to compare OJ t(w)od(w)o, mod. todo `eared seal, Eumetopias jubatus' (for a very similar semantic relation cf. PA *tā̀ŋo), but the vocalism is not quite clear.