The peculiar P⇔K connection of PIE is well attested through the Indus association of
𓆣 𓐍𓊪𓂋𓂋 Käfer with the abstract letter kappa:
𜐳 𜐲 𜐶 𜐵 k vs 𜐻 p b beetle in Elamite :
𜛺 𜛾 𜦮 𜦭 𜦳 𜦴 ⇔ 𜐳 perfect continuum, supported by many side forms.

PIE had a peculiar yet almost ubiquitous sound-change between

K < q:=kʷ > P

TC 𐀤 QE quatro CE tetra

CP cinque penj 5
𒄿
𓄙 CRY/PHR

GB
QV quod > what OK

ч < q < Ϥ 𓆑 qv > Ϥ व v
ч 𐡊 kappa cobra 𓆑 kur
ч ⋍ 4 quattro θετρα / four

𔔤 ≠ 𔗟 •pou ≠ kou
𓊪 ≠ 口 •pou ≠ kou
𓊪 ≠ 𒆪 •pou ≠ kou
𔔣 ≠ 𔗟 •pou ≠ kou

𒆪𒌦𒉪 ku-un-nir :
𒆪𒌦𒉪 •pu-un-nir փանջարա pʿanǰara پنجره panjere پنجره pencere ⇔ पिञ्जर piñjara fenster window

𐀂 peculiar ᵍᵠ / ᵠᵍ

#confusion between K/P often lead to ø deletion
𒄿 "I"
𒄿 •kwiᵒⁿ
𒄿 quint/pent 5

𒄿𒋾 ʷi-ti /īti, īdi/ wade walk ⇔ evade
𒄿𒋾 ᶢi-ti /īti, īdi/ goeth "to go" vs come

𒄿 pent => 𒄿𒋫𒋾 plant phyte pi-ta-ti (eat potato;)
𒄿 bander 𓊹𓇼 > 𓇋
𒄿 fün = VON ?
𒄿 fi = OF
𒄿 WI 𒋫𒊒𒄿𒊭 Truwisa Troy (•TauroPithar)

𓁸 Peculiar Bi/Gi change:

𒄑𒉈𒂵𒈩 Bilgameš Bil2-ga-meš3 𒄑𒂆𒈦 Gilgameš

𓊵 𓏏 𓊪 hotep ἡσυχία hēsukhía (𓊪 口 kou) peculiar

𓐪 𓂧 𓀨 #qd kupiti peculiar

𒄿𒉿𒅖;𒄭𒉿𒀊 ipiš; i-pi-iš; 𐌰𐌵𐌹𐌶𐌹 aqizi axe ⇔ kapak

Peculiar B/D change:
𐎄

Greek: λύκος lúkos "Licht" wolf
PIE: *wĺ̥kʷos peculiar wĺ̥kʷ => wĺ̥p Welpe wolf
Luwian: 𒌑𒇷𒅁𒉌𒅖 /úlipnis/ wolf
Latin: lupus wolf
Sumerian: 𒈜 LUB lupo wolf
Sumerian: 𒈜 LIK λύκος lúkos wolf

𓅱 pollo pollino pollito 🐥 🐣 who
🐔 gallo 🐤 gallina peculiar que

𒍝𒀊𒉼 za-ap-pan Zwang ζυγόν zugón "yoke" Zügel

The variation of the initial consonant between
Θ (Th) and Φ (Ph) in different dialects is the reason for reconstructing a labiovelar *kʷʰ.

bread
𒅆 𒅁𒊒𒌝 ši-ip-ru-um Zubrot
𒅆𒅁𒊑𒌝 ši-ip-ri-um ҫӑкӑр śăk̬ăr sugers قرص gərṣ اغروم ˢaḡrum ⴰⵖⵔⵓⵎ 𒃻 superum < turpan 𓏏 𓏐 𓏳 𓏥

𒀜𒌅 at-tu to dig < 𓄞 𓂧 𓀜, 𓆷 𓂧 𓂡, 𓆷 𓄿 𓂧 𓁃 , 𓆷 𓄿 𓂧 𓂡

1. 𒁁𒁕𒀀𒄿 páddāi 파다 pada => part ⇔ Spaten
2. ᶴattu < 𓆷 𓄿 𓂧 𓂡 < 𓄞 𓂧 𓀜 < ขุด khùt cut
3. đào တူး tu conflicting variants resolved with ø

𓋹𓈖𓐍 naᵞpištú 𒈾𒄫𒌓 na𓇑vista peculiar

𓈎 unpeculiar 𓋴𓃀𓏘 šepíqa 𓃀 in sport shoe 𓋴 𓂝 𓈎 𓂻 send

白 brái ≈ Brunn 𓈞 𓈟 原 yuán inn quán 泉 (peculiar)

𓋴 𓊪 𓏏 𓂏 | •Hasenscharte •šᵖarte *skardą peculiar

Korb корпа korpa korg

LU5 𒈜 LUB lupo welpe wolf
LU₅ 𒈜 LIK λύκος lúkos

𒀠 ᵇAL ≈ 𒀡 bal₃ 𒀦 bal₄ Beil Keil peculiar
𒀠 ᵍAL < CAL Keil 𒀠𒇻 ᶜal-lu kájlo “hoe”

Typical PIE peculiar qᵛ => f
qırmısqa ≈ formaica ( ant )

𒊾 #šurpu šuruppû šurīpu peculiar
𓐠 𓏤 𓂋 𓏤 𓏘 𓅱 𓇲 𓏤𓏤𓏤 | snow | sꜣrꜣq 𓐠𓂋𓏘 서리 seori •šaraq 𒊭𒆷𒄖 šalagu תלג שֶׁלֶג šéleḡ < תלג talag تلج

𒍏𒆕 ≈ 𒄑𒆕 šukur spear ( peculiar 𒍏 Erz / 𒄑 wood )

𒄯 ḪARᵒˢ χρέος chréos 𒄯𒊏 ḪAR-RA ᵏḫara qer قەرز qerz къарз qˣarz "debt" ⇔ бурж burž peculiar

𒌒 ˢUP Schopf in 𒌒 siùbhlach ਸਾਫ਼ sāph < ਸਪੱਸ਼ਟ sapaśśaṭ ≈ speak "to enunciate" ⇔ 𒊕 SAG sagh peculiar

𓊖 𓏏 Ort ⇔ 𓉐 𓂋 𓇋 𓇋 𓏏 𓉐 𓏥 port běrtyl part peculiar

𐘾 •shield ܣܟܪܐ sakkərā sekar سپر separ 𐭮𐭯𐭥 sparˢ ϣⲉⲃϣⲓ šebši
𐘾 •shield •se'kielde
𐘾 •shield ខែល khael
𐘾 •shield kalasag

𒆳𒁲𒈝 kur-di-lum kurdilum #kurdillu fruit tree
𓉐 𓂋 𓏏 𓍁 𓈓 gourd @ garden ≈ guard gate
𓍁 𓂋 𓏏 gourd / fruit
𓂧 𓏘 𓂋 𓏏 𓂷 ć'qurt d'qurt ≈ (the) gourd

𐠡 po
𐠷 qa 𐠸 qe

𐠊 ka < 𒾣 ka < 𐀏 ka < 𐘾 KA ⇔ 𒾥 ≈ 𐙛•SI 𐀯 si sword 𒾤 ≈ 𐃉 𐘢 PI pugnale 𓃀 𓎼 𓇓 𓅱 𓌑 dagger

𜦾 𜧟 ≈ Kappa? see indus

𓅚 pewit / peewit (Kiebitz)

ᒉ G8 𐤐 pē ᒋ H8 ᒉ̍ G16' vs 𑀔 KHA E19 P / Q

𓄊 𓄉 𓄈 peculiar 𓃡 / 𓃒