firm, durable quick 5 realizations
ACCEPTED Realization 1
Type Cognates
Language 1 Old East Slavic
Language 2 Bulgarian
Lexeme 1 чьрствыи
Lexeme 2 червъст (čevrăst)
Meaning 1 hard
Direction
Meaning 2 one who is quick, nimble in work or in movements
Reference RNBE Sreznevskij: 3, 1567-1568
Comment
ACCEPTED Realization 2
Type Semantic evolution
Language 1 Old English
Language 2 English
Lexeme 1 fæst
Lexeme 2 fast
Meaning 1 firm, stable
Direction
Meaning 2 quick, fast
Reference Dictionary of synonims. Buck: 986 Bosworth, Toller: 267
Comment

The development of “rapid” apparently happened first in the adverb and then transferred to the adjective; compare hard in expressions like “to run hard”. The original sense of “secure, firm” is now slightly archaic, but retained in the related fasten (“make secure”).

ACCEPTED Realization 3
Type Cognates
Language Russian
Lexeme жёсткий (žëstkij)
Meaning 1 hard, harsh
Direction
Meaning 2 (dialect) quick, nimble
Reference SRNG: 9, 146
Comment The second meaning is dialectal (Western, Kursk )
SUSPENDED Realization 4
Type Cognates
Language 1 Russian
Language 2 Czech
Lexeme 1 крепкий (krepkij)
Lexeme 2 křepký
Meaning 1 strong, solid
Direction
Meaning 2 brisk, nimble
Reference SSJČ
Comment Cf. Also ЭССЯ 12: 135-138
ACCEPTED Realization 5
Type Cognates
Language 1 Slovenian
Language 2 Czech
Lexeme 1 dréčen
Lexeme 2 dričné
Meaning 1 corpulent, stout
Meaning 2 quick, nimble
Reference
Comment The Czech word is dialectal