There are 8 14-letter words that start with 'arch'.
| archaebacteria | archaeological |
| archaeologists | archbishoprics |
| archdeaconries | archiepiscopal |
| archimandrites | architectonics |
Note: These 8 14-letter words that start with 'arch' are found from the USA & Canada version of the tournament Scrabble word list.
Also see words start with archi, archa, arche, archd, archo, archb, archf, archn, archp, archr, archw, archl.
6-letter words start with 'arch' (6)