while
From LSJ
English > Greek (Woodhouse)
conjunction
P. and V. ἕως, ἐν ᾧ. Ar. and P. ἐν ὅσῳ, V. ἔστε (also Xen.).
for a while, adv.: P. and V. τέως.
for a long while: P. and V. μακρὸν χρόνος; see long.
it is worth while: P. and V. ἄξιόν ἐστι (or omit ἐστι) (with infin.).