From naca'; a departure (from striking the tents), i.e. March (not necessarily a single day's travel); by implication, a station (or point of departure) -- journey(-ing).
see HEBREW naca'
H4550. massa
מַסַּע noun [masculine] pulling up, breaking camp, setting out, journey; — absolute ׳מ Numbers 10:2; Deuteronomy 10:11; plural construct מַסְעֵי Numbers 10:28; 33:1; suffix מַסָּעָיו Genesis 13:3, מַסְעֵיהֶם Exodus 17:1 6t.; —
1. a. pulling up, breaking camp (with accusative מַחֲנֶה; Ges§ 45e, 115d) Numbers 10:2.
b. setting out Numbers 10:6, compare 10:23.
2 station, stage, journey (by stages), לְמ ׳וַיֵּלֶךְ Genesis 13:3 and he went by (according to) his journeyings (compare הלך, p. 231 a above); לְמַסְעֵיהֶם Exodus 17:1; compare 40:36, 38; Numbers 10:12 (all P; all with נָסַע), 33:1-2,("" מוֺצָאֵיהֶם), 33:2 ("" id.); לְמַסַּע לֵךְ קוּם Deuteronomy 10:11 for journeying (see Dr).