six·ti·eth 
(sĭkstē-ĭth)
(sĭkstē-ĭth)n.
1. The ordinal number matching the number 60 in a series.
2. One of 60 equal parts.
sixti·eth adv. & adj.
- silver iodide
- silver lining
- silver maple
- silver mound
- silvern
- silver nitrate
- silver perch
- silver plate
- silver-plate
- silverpoint
- silver protein
- silverrod
- silver salmon
- silver screen
- silverside
- silversides
- silversmith
- silver spoon
- silverspot
- silver standard
- Silver Star
- silvertip
- silver-tongued
- silverware
- silver wattle