The ending of the word seems to be clearer than the beginning. Picking up on the 'cz' as a clue that this might be a Polish name, I tried the Online Gazetteer at JewishGen.org. The FamilySearch Research wiki's article on Poland Gazetteers says:
The biggest advantage of this search is that it uses a specialized
soundex system to find places. This can be very helpful if your
spelling is not quite accurate. Keep in mind that not all the results
will be of value. A soundex result is not intended to provide
sounds-like results. You have to be judicious in selecting the correct
place from the display page.
Using the Daitch-Mokotoff Soundex gives five possible matches, three in Poland, one in Moldova, and one in Lithuania. One possible match is Rostkowice, Poland. The search form returns these fields:
- Location (Native names in BOLD)
- Feature Type
- Coordinates (Click for JewishGen Resource Map)
- links to Maps
- Distance/Direction from reference point
- 10 mile radius (clicking this returns the names of other places within that distance)
Do you have any records (like manifests belonging to other family members, friends or associates) that might hold other clues?