DIACHRONICALLY

aa ad ah ai al an ar ay do ha hi ho id in la li lo na no od oh oi on or oy ya yo

aah aal ado aha ahi aid ail ain air ala all ana and ani any arc cad can car cay chi cod col con cor coy cry dah dal dan day din doc dol don dor dry had hao hay hic hid hin hod hon hoy ich icy ill ion lac lad lar lay lid lin nah nay nil nod noh nor oar oca oda oil old ora orc rad rah rai ran ray rho ria rid rin roc rod rya yah yar yid yin yod yon

achy acid acyl ahoy airn airy alan alar ally anal anil anoa arch arco aria arid aril aryl ayah ayin caca cadi caid cain call calo card carl carn chad chai chao char chay chia chic chid chin chon ciao cion clad clan clay clod clon cloy coal coca coda coil coin coir cola cold coly coni cony cord corn cory croc cyan dahl darn dhal dial dill dino diol dirl doll dona dory dray haar hail hair hall halo hand hard harl hila hili hill hind hoar hold holy hora horn hoya hyla icon idly idol idyl ilia illy inch inia inly inro irid iron lacy lady laic laid lain lair land lard lari liar lich lido lilo lily lino liny lion lira liri load loan loca loch loci loid loin lord lorn lory lych nada nail nala naoi narc nard nary nidi nill nodi noil noir nori odah odic odyl ohia oily oldy olla only orad oral orca racy raia raid rail rain rand rani raya rial rich rill rind road roan roil roll rynd yald yard yarn yill yird yodh yond yoni