duplication

Merge with doubling

One orthographic rule of Egyptian/Sumerian seems to be stretched vowels via duplication:
𓎡 𓏏 𓎡 𓏏 𓀁 quiet
𓎡 𓎛 𓎡 𓎛 𓀗 ghiero : gero γέρων Greis

𓃀 𓂝 𓃀 𓂝 𓀢||drink|bebe bibo@Lat
𓃀 𓂝 𓃀 𓂝 𓈗||drink|boire

𓇋 𓄿 𓄿 𓏏 𓇣||rod, reeds, rushes| yair't

𒂼𒂼 AMA-AMA = OMA (grand mother)!

2. 𒀜𒈬 𒀜𒀜𒈬 𒂼𒈬 𒂼𒂼𒈬 𒋀𒈬 𒊩𒈠𒈬
3. AD.MU AD-AD.MU AMA.MU AMA-AMA.MU ŠEŠ.MU NIN.MU
4. vata-my vatta-my mama-mia oma-my sistor-my niña-my
5. my father, my grandfather, my mother, my grandmother, my brother, my sister,

Maybe we also witness consonant clusters/clarification: GG⋍NG/GN
𓋴 𓋴 𓂋 𓂧 𓇝||© plant (garden)|garden ss:gg duplication 𒊬šar
𓋴 𓋴 𓐟 𓄿 𓀁 | © satisfy | genügen
vs:
𓋴 Strick ST! 𓎛 𓆰 𓈖 𓋴 𓅪 constricted
𓋴 𓋴 𓐟 𓄿 𓀁 | © satisfy
𓋴 𓋴 𓐟 𓅱 𓀁 | satisfaction
𓋴 𓋴 𓐟 𓄿 𓏊 𓏐 𓏳 | sustenance
√sess<sit

𓎡 𓊃 𓎡 𓊃 𓀤 | dance | czczm duplication dancing
𓎡 𓊃 𓎡 𓊃 𓀤 | dance | cupz > кафт kaft duplication

𓎡 𓏏 𓎡 𓏏 𓀁 | quiet | quiet! / chut-chut

𒀀𒀀 οὐ ohn ⇔ anti duplication ⇔ 𐀃𐀄 ?

𒅆𒅆 bad₅ ≈ beat in 𒅆𒅆𒅆𒅆 bad₅bad₅ “defeat” #dabdû •beat (in battle) dual duplication

𒄵 ≈ part in 𒄵 ≈ 𒊳 ≈ 𒁉𒁉𒉘 bir;bi-bi-re;bir9 dis-bir : disperse √part
𒄵 𒊳 bir ≈ 𒊮 𒊶 𒊳 bir7;bir6;bir9 √part break

𒃻𒃻𒊏 gar-gar-ra •garimura giɽ @ Brahui / Elamite > kAll 𓎟
𒂵𒂵𒊏 ga-ga-ra •gaimura #kumurrû com "total, sum"