Henry George Liddell, Robert Scott, A Greek-English Lexicon

A.at rest, at one's ease, in Hom. esp. of persons feasting and enjoying themselves, “οἱ δὲ ἕκηλοι τέρπονται” Il. 5.759 ; “ἕκηλος πῖνε” Od.21.309 ; ἕκηλοι νεκροὺς ἂμ πεδίον συλήσετε ye will plunder them at your ease, i.e. without let or hindrance, Il.6.70 ; ἕκηλος ἐρρέτω let him be off in peace, 9.376 ; of mere inaction, quiet, only twice in Hom., “ἔσθἰ ἕκηλος” Od.17.478 ; “ἕκηλοι κάτθετε” 21.259, cf. Theoc.25.100 ; “ἕκαλος ἔπειμι γῆρας” Pi.I.7(6).41 ; “ἕ. εὕδειν” S.Ph. 769 ; ἐᾶν ἕκηλόν τινα ib.826 : neut. as Adv., “ἕκηλα ἡμερεύειν” Id.El. 786 : metaph. of a field, lying at rest or fallow, h.Cer.451 ; of trees, unmoved, A.R.3.969.