most straitest

Strong’s Dictionary of Greek Words:

Number:
196 (find all occurrences in KJV Bible)
Greek:
ἀκριβέστατος
Transliteration:
akribestatos
Phonic:
ak-ree-bes’-ta-tos
Meaning:
superlative of ἀκρίβης (a derivative of the same as 206); most exact
KJV Usage:
most straitest