word: PIE > ('is') — compare Sanskrit , Latin PIE > ('I will have') PIE > ('kind') — compare Sanskrit , Latin The PIE semivowel , IPA , was sometimes debuccalized and sometimes strengthened initially. How this development was conditioned is unclear; the involvement of the laryngeals has been suggested. In certain other positions, it was kept, and frequently underwent other sound changes: PIE > , ('who') () — compare Sanskrit PIE > early > Attic ('yoke') — compare Sanskrit , Latin > Proto-Greek > ('part') (compare ) Between vowels, became . Intervocalic probably occurred in Mycenaean. In most cases it was lost by the time of Ancient Greek. In a few cases, it was transposed to the beginning of the word. Later, initial was lost by psilosis. PIE *ǵénh₁es-os > PGr > Ionic > Attic ('of a race') (contraction; of ) Mycenaean pa-we-a₂, possibly , later ('pieces of cloth') PIE > Proto-Greek > ('singe') By morphological leveling, intervocalic was kept in certain noun and verb forms: for instance, the marking the stems for the future and aorist tenses. ('I release, I will release, I released') Grassmann's law Through Grassmann's law, an aspirated consonant loses its aspiration when followed by another aspirated consonant in the next syllable; this law also affects resulting from debuccalization of ; for example: PIE > ('I placed') () > ('I place') () > ('I have placed') () > ('hair') () > ('hairs') () PIE > ('I will have') () > ('I have') () Palatalization In some cases, the sound in Attic corresponds to the sound in other dialects. These sounds developed from palatalization of , and sometimes , , and before the pre-Greek semivowel . This sound was likely pronounced as an affricate or earlier in the history of Greek, but inscriptions do not show the spelling , which suggests that an affricate pronunciation did not occur in the Classical period. * > > , Attic ('weaker') — compare ('softly') PIE > > > , Attic ('I arrange') — compare ('battle line') and Latin PIE > > > , Attic ('tongue') — compare ('point') Loss of labiovelars Mycenaean Greek had three labialized velar stops , aspirated, tenuis, and voiced. These derived from PIE labiovelars and from sequences of a velar and , and were similar to the three regular velars of Ancient Greek , except with added lip-rounding. They were written all using the same