şaşmak

From Ottoman Turkish شاشمق (şaşmak, “to miss one's way, to be surprised, be completely wildered”), from Proto-Turkic *siāĺ- (“to be astonished, to slander”).^[1] With rarely seen /s/- to /ş/- assimilation due to final /ş/. Compare similar examples such as: şişmek, şiş.

Cognate with Karakhanid (saş, “wild, nervous, confused, puzzled”),^[2] Azerbaijani çaşmaq (“to make mistakes, be confused”), Khalaj (šašqa-, “to slander”), Turkmen çaşmak (“to faint, to be lost”).

şaşmak (third-person singular simple present şaşar)

1. (intransitive) to be amazed at, be astonished at
2. (intransitive, with ablative case) to depart from (a way of behavior)
3. (intransitive) to make a mistake, be mistaken
4. (transitive) (for a missile, a blow) to miss (its object)
5. (transitive) to lose (one's way), to forget (what day it is)
6. (intransitive) (for something) not to take place at its usual time