'mong and 'mongst aphetic for among and amongst

• sexagenaries
• sexagenary
• Sexagesima
• sexagesimal
• sexagesimally
• sexagesimals
• Sexagesima Sunday
• sex aid
• sex aids
• sex-and-shopping
• sex appeal
• sex bomb
• sex bombs
• sex cell
• sex cells
• sexcentenaries
• sexcentenary
• sex change
• sex-change
• sex changes
• sex chromosome
• sex chromosomes
• sex-determination
• sex drive
• sex drives