Catalan sis

← Proto-Indo-European *swéḱs (inherited)

← Latin sex (inherited)

← Old Occitan seis (inherited)

→ Catalan vint-i-sis (mention)

→ Catalan trenta-sis (mention)

→ Catalan quaranta-sis (mention)

→ Catalan cinquanta-sis (mention)

→ Catalan seixanta-sis (mention)

→ Catalan setanta-sis (mention)

→ Catalan vuitanta-sis (mention)

→ Catalan noranta-sis (mention)

→ Catalan sis-cents (mention)

→ Catalan sisè (affix)

→ Catalan sis-centè (mention)