middle, centre Wednesday 12 realizations
NEW Realization 1
type Derivation
language Bosnian
lexeme 1 srěda
lexeme 2 Srijeda
meaning 1 middle
direction
meaning 2 Wednesday
reference <personally collected data>
comment

Proto-Slavic *serda.

srijeda - Wiktionary

NEW Realization 2
type Derivation
language Bulgarian
lexeme 1 срѣда
lexeme 2 Сряда
meaning 1 middle
direction
meaning 2 Wednesday
reference <personally collected data>
comment old bulgarian
Сряда – Уикипедия (wikipedia.org)
NEW Realization 3
type Derivation
language Czech
lexeme 1 střed
lexeme 2 středa
meaning 1 middle
direction
meaning 2 Wednesday
reference Buck 2008: 1007
comment
NEW Realization 4
type Derivation
language Finnish
lexeme 1 Keski
lexeme 2 Keskiviikko
meaning 1 middle
direction
meaning 2 Wednesday
reference <personally collected data>
comment

keskiviikko - Wiktionary

NEW Realization 5
type Derivation
language German
lexeme 1 mitte
lexeme 2 Mittwoch
meaning 1 middle
direction
meaning 2 Wednesday
reference <personally collected data>
comment https://www.dwds.de/wb/etymwb/mittwoch
NEW Realization 6
type Derivation
language Icelandic
lexeme 1 miðja
lexeme 2 miðvikudagur
meaning 1 middle
direction
meaning 2 Wednesday
reference Buck 2008: 1006
comment
NEW Realization 7
type Polysemy
language Old Church Slavonic
lexeme срѣда
meaning 1 middle, center
direction
meaning 2 Wednesday
reference Cejtlin et al. 1994: 621-622
comment Borrowed to Russian среда (sreda), Serbo-Croatian среда / sreda, сриједа / srijeda, Bulgarian сряда (srjada)
NEW Realization 8
type Derivation
language 1 Old East Slavic
language 2 Slovak
lexeme 1 sьrdь
lexeme 2 Streda
meaning 1 middle
direction
meaning 2 Wednesday
reference <personally collected data>
comment

Proto Slavic 
streda - Wiktionary

NEW Realization 9
type Derivation
language Polish
lexeme 1 środek
lexeme 2 sroda
meaning 1 middle
direction
meaning 2 Wednesday
reference Buck 2008: 1007
comment

not sure in this realization

NEW Realization 10
type Derivation
language Russian
lexeme 1 середина
lexeme 2 среда
meaning 1 middle
direction
meaning 2 Wednesday
reference Buck 2008: 1006
comment
NEW Realization 11
type Derivation
language Serbian
lexeme 1 средњи
lexeme 2 среда
meaning 1 middle
direction
meaning 2 Wednesday
reference <personally collected data>
comment
NEW Realization 12
type Derivation
language Serbo-Croatian
lexeme 1 sredina
lexeme 2 srijeda
meaning 1 middle
direction
meaning 2 Wednesday
reference Buck 2008: 1007
comment